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Prove that a cyclic parallelogram is a rectangle.
Every letter of the English alphabet is coded into numbers like A stands for 1, B for 2 and so on.. Decode the letters used in the phrase RESPECT GIVEN IS RESPECT EARNED. Find the probability of each letter used (only once) to form the phrase from the total sum of all the 27 decoded letters
find the mean of first 10 prime numbers
Two coins are tossed simultaneously . Find the probability of getting
(a) two heads
(b) at least one head
(c) no head
(d) at most one head
five cards--the ten,jack,queen,king and ace of diamonds, are well-shuffled with their face down.One card i picked up with random.1)what is the probablity that the card is the queen? 2)if the queen is drawn and put aside, what is the probablity that the secondncard is up is (a) an ace? (b) a queen ?
The king, queen and jack of clubs are removed from a deck of 52 playing cards and then well shuffled. One card is selected from the remaining cards. Find the probability of getting
1. A heart
2. A king
3. A club
4The '10' of hearts
Q. Three coins are tossed simultaneously 200 times with the the following frequencies of different outcomes:
Outcome Frequency
3 heads 23
2 heads 72
1 head 77
no head 28
How to find probability of getting:
1. three heads 2. at least two heads 3. two heads and one tail
how to write a maths project for icse class ix on planning a delivery route for a postman
in a cricket match a batsman hit a boundary 6 times out of 30 balls she plays. find the probablity that she did not hit boundary?
give me chapter wise weightage of all the chapter in maths of sa2 exam..
a class consist of 50 students out of which 30 are girls . the mean of marks scored by girls in a test is 73 & that of the boys is 71 . find the mean score of whole class .
17 cards numbered 1,2,3........17 are put in a box and mixed thoroughly. One person draws as ard from the box. Find the probability that a number on the card is (i) odd (ii) a prime
A piggy bank contains hundred 50 p coins,fifty 1 rupee coins,twenty 2 rupee coins &ten 5 rupee coins.If it is equally likely that one of the coins will fall out when the bank is turned upside down,what is the probability that the coin: 1)will be a 50p coin? 2)will not be a 5 rupee coin? 3)which mathematical concept is used in above problem? 4)what is its value? ( pls .... i need the answer today)
The probability of guessing the correct answer to a certain question is X/2 (X by 2). If probabiliy of not guessing the correct answer is 2/3 (2 by 3), then find X.
Please answer the question urgently. My exam is on 20th Thursday.
Thanks
Lead spheres of diameter 6 cm each are dropped into a cylinderical beaker containing some water and are fully submerged. If the diameter of the beaker is 18 cm and water level rises up to 40 cm, find the number of lead spheres dropped into water.
What is the probability of getting 53 Sundays in a leap year and in a non leap year?
Q7. Two dice are thrown simultaneously 500 times. Each time the sum of two numbers appearing on their tops is noted and recorded as given ahead table: Sum 2 3 4 5 6 7 8 9 10 11 12 Frequency 14 30 42 55 72 75 70 53 46 28 15 If the dice are thrown once more, What is the probability of getting a sum i) 3? ii) More than 10? iii) Less than or equal to 5? iv) Between 8 and 12?
Two dice is thrown simultaneously . The probability of getting a multiple of 2 on one die and a multiple of 3 on the other is .
(a) 5/36 (b)5/12 (c)11/36 (d) 1/12
Three coins are tossed simultaneously 200 times with the following frequencies of different outcomes:
no heads 28
find the probability of getting
( i) 3 heads
(ii) at least 2 heads
(iii) two heads and one tail
no . 1 to 12 are put into the bag then find probability of the
(a) prime number
(b) even prime number
(c) even no .
3 of the 6 vertices of a regular hexagon are chosen at random find the probability that the triangle with three vertices is equilateral.
A and B are the only two outcomes of an event.Probability of P(A)=0.72,then what will be the probability P(B) and why?
1500 families with 2 children were selected randomly and the following data were recorded:
number of girls in a family: 0 1 2
frequency: 211 814 475
if a family is chosen at random,compute the probability that it has:
1. no girl.
2. 1 girl.
3. 2 girls.
4. at most one girl.
5. more girls than boys.
A die is thrown 1000 times with frequency of outcome 1,2,3,4,5, and 6 as given below
outcome 1 2 3 4 5 6
Frequency 179 150 157 149 175 190
A die is thrown once again. Find the probability of outcome "greater than 3" ?
chech whether 7/6 can be an empirical probability or not. give reasons.
Eleven bags of wheat flour, each marked 5 kg, actually contained the following weights of flour (in kg):
4.97 5.05 5.08 5.03 5.00 5.06 5.08 4.98 5.04 5.07 5.00
Find the probability that any of these bags chosen at random contains more than 5 kg of flour.
A bag contains 4 white balls and some red balls. If the probability of drawing a white ball from the bag is 2/5, find the number of red balls in the bag.
in a deck of cards how many red cards are there, how many black, how many aces, jokers, kings, queens and better tell me everything but fast please
in a lottery,there are 10 prizes and 25 blanks,a ticket is drawn randomly,theprobability of getting a prize is?
(m/n)x^2 + n/m = 1 - 2x
A box contains 50 bolts and 150 nuts. On checking the box ,it was found that half of the bolts and half of the nuts are rusted. If one item is chosen at random, find the probability that it is rusted.
1) probability of an event can be
a) -0.7 b) 11/0 c) 1.001 d) 0.6
2) a die is thrown once .the probability of getting a prime no. is ______________ ????
which of the following cannot br empirical probability of an event?
a] 4/5
b] 1
c] 0
d] 5/4
who was pierre fermat !:P???? nd who was blaise pascal ??
give meh the meanning of probability ??
what is the game chance ???
is probablity realated to games ,, if yes how ,,,?? if no den how ??/
A number x is chosen at random from the numbers -3.-2,-1,0,1,2,3. Find The probability that [x]<2
the mean age of 10 students of a class is 15 years. A student of age 14 years leaves the class and in his place age of their teacher is counted. This increased the mean age of group to 16 years. Find the age of the teacher.
A die is thrown 100 times.If the probability of getting an even number is 2/5.how many times an odd number is obtained?
when udar purchased an item online from australia for AUD 350.00, the exchange rate was 1000 INR for AUD 17.50 ( AUd = Australian Dollar) udars bank charged him 1.5% for the transaction.
the total cost of item was
two dice are thrown simuntaneously 500 times . each time the sum of two numbers appearing on them is not written
sum frequency
2 14
3 30
4 42
5 55
6 72
7 75
8 70
9 53
10 46
11 28
12 15
find the PROBABILITY of getting a sum
1)more than 10
2)between 8 and 12
Q-If the probability of winning a game is 0.4 what is theprobabilityof losing it ?
If x is the mean of n observations x1,x2,x3......xn.Then sigma ni=1 (x1-x) is ??
A RECENT SURVEY FOUND THAT THE AGES OF WORKERS IN FACTORY ARE DISTRJBUTED AS
AGE IN YRS 20-29,30-39.40-49,50-59,60 AND ABOVE
NO.OF WORKERS 38,27,86,46,3
IF A PERSON IS SELECTED AT RANDOM FIND THE PROBABILITY THAT THE PERSON IS
1. 40 YRS OR MORE
2.UNDER 40YRS
3.UNDER 60 BUT NOT OVER 39YRS
in a hurdle race, a player has to cross 10 hurdles. the probability that he will clear each hurdle is 5/6. what is the probability that he will knock down fewer than 2 hurdle????
50-32-12 not equal to 2
A die is rolled 50 times such that a prime number appeared on it 32 times and composite number appeared 12 times.What is the probability of getting the number 1 on the die?
A die is rolled 50 times such that a prime number appeared on it 32 times and composite number appeared 12 times.
What is the probability of getting the number 1 on the die?
Number of times die is rolled = 50
Number of times prime number appeared = 32
Number of times composite number appeared = 12
It is known that:
2, 3, and 5 are prime.
4 and 6 are composite.
1 is neither prime nor composite.
∴ Number of times 1 appeared = 50 − 32 − 12 = 2
Probability is given by:
∴ Required probability
Thus, the probability of getting 1 is.
The correct answer is C.
Three coins are tossed simultaneously 100 times with the following frequencies of different outcomes-
no head-14
one head-38
two heads-36
three heads-12
if the three coins are simultaneously tossed again,compute the probability of:
1. 2 heads coming up.
2. 3 heads coming up.
3. at least one head coming up.
4.getting more heads than tails.
5. getting more tails than heads.
a coin is tossed 1000 times with the following frequencies:
Head:455, Tail: 545
Compute The Probability for each event
sir thanks a lot for ur kind support during exams nd study material
my physics exam will be so so but english nd chem. is good..
nw hope for maths .... i lil scared
The percentage of marks obtained by a student in examination are given below:
Examination Subjects
I
II
III
IV
V
% Marks
58%
64%
76%
62%
85%
Find the probability that the student gets –
i) a first class in a subject i.e. at least 60% marks.
ii) A distinction in a subject i.e. at least 75% or above.
iii) Marks between 70% and 80% in a subject.
DEAR EXPERTS,
WHILE GOING THROUGH TEST 4 OF CH- PROBABILITY , I FOUND THAT IN Q.10 THE DECIMAL POINT IS MISSING RATHER IT IS THERE IN THE ANS.
PLS. CHECK!!!!!!!!!!
YOUR STUDENT..
A die is thrown 50 times and it shownedthe number of 23 times.find the probability of getting a number other than 1 in the next throw of the die.
From numbers 3, 5, 5, 7, 7, 7, 9, 9, 9, 9 one number is selected at random. The probability
a bag contains 4 white balls and some blue balls . if the probability of drawing a blue ball is trice that a white ball . find the no. of blue balls in the bag
E.g: 9876543210, 01112345678
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Syllabus
Prove that a cyclic parallelogram is a rectangle.
Every letter of the English alphabet is coded into numbers like A stands for 1, B for 2 and so on.. Decode the letters used in the phrase RESPECT GIVEN IS RESPECT EARNED. Find the probability of each letter used (only once) to form the phrase from the total sum of all the 27 decoded letters
find the mean of first 10 prime numbers
Two coins are tossed simultaneously . Find the probability of getting
(a) two heads
(b) at least one head
(c) no head
(d) at most one head
(a) (b) 1 (c) 0 (d)
five cards--the ten,jack,queen,king and ace of diamonds, are well-shuffled with their face down.One card i picked up with random.1)what is the probablity that the card is the queen? 2)if the queen is drawn and put aside, what is the probablity that the secondncard is up is (a) an ace? (b) a queen ?
The king, queen and jack of clubs are removed from a deck of 52 playing cards and then well shuffled. One card is selected from the remaining cards. Find the probability of getting
1. A heart
2. A king
3. A club
4The '10' of hearts
No. of defective bulbs Frequency
0 400
1 180
2 48
3 41
4 18
5 8
6 3
more than 6 2
One cartoon is selected at random. What is the probability that it has:
a)no defective bulbs.
b)defective bulbs from 2 to 6.
c)defectve bulbs less than 4.
(a) (b) (c) (d)
Q. Three coins are tossed simultaneously 200 times with the the following frequencies of different outcomes:
Outcome Frequency
3 heads 23
2 heads 72
1 head 77
no head 28
How to find probability of getting:
1. three heads 2. at least two heads 3. two heads and one tail
how to write a maths project for icse class ix on planning a delivery route for a postman
in a cricket match a batsman hit a boundary 6 times out of 30 balls she plays. find the probablity that she did not hit boundary?
give me chapter wise weightage of all the chapter in maths of sa2 exam..
a class consist of 50 students out of which 30 are girls . the mean of marks scored by girls in a test is 73 & that of the boys is 71 . find the mean score of whole class .
17 cards numbered 1,2,3........17 are put in a box and mixed thoroughly. One person draws as ard from the box. Find the probability that a number on the card is (i) odd (ii) a prime
A piggy bank contains hundred 50 p coins,fifty 1 rupee coins,twenty 2 rupee coins &ten 5 rupee coins.If it is equally likely that one of the coins will fall out when the bank is turned upside down,what is the probability that the coin: 1)will be a 50p coin? 2)will not be a 5 rupee coin? 3)which mathematical concept is used in above problem? 4)what is its value? ( pls .... i need the answer today)
The probability of guessing the correct answer to a certain question is X/2 (X by 2). If probabiliy of not guessing the correct answer is 2/3 (2 by 3), then find X.
Please answer the question urgently. My exam is on 20th Thursday.
Thanks
Lead spheres of diameter 6 cm each are dropped into a cylinderical beaker containing some water and are fully submerged. If the diameter of the beaker is 18 cm and water level rises up to 40 cm, find the number of lead spheres dropped into water.
What is the probability of getting 53 Sundays in a leap year and in a non leap year?
Q7. Two dice are thrown simultaneously 500 times. Each time the sum of two numbers appearing on their tops is noted and recorded as given ahead table: Sum 2 3 4 5 6 7 8 9 10 11 12 Frequency 14 30 42 55 72 75 70 53 46 28 15 If the dice are thrown once more, What is the probability of getting a sum i) 3? ii) More than 10? iii) Less than or equal to 5? iv) Between 8 and 12?
Find the probability of getting:
(a) an even number
(b) an odd number greater than 1. getting 1
Two dice is thrown simultaneously . The probability of getting a multiple of 2 on one die and a multiple of 3 on the other is .
(a) 5/36 (b)5/12 (c)11/36 (d) 1/12
Three coins are tossed simultaneously 200 times with the following frequencies of different outcomes:
3 heads 23
2 heads 72
1 head 77
no heads 28
find the probability of getting
( i) 3 heads
(ii) at least 2 heads
(iii) two heads and one tail
no . 1 to 12 are put into the bag then find probability of the
(a) prime number
(b) even prime number
(c) even no .
3 of the 6 vertices of a regular hexagon are chosen at random find the probability that the triangle with three vertices is equilateral.
A and B are the only two outcomes of an event.Probability of P(A)=0.72,then what will be the probability P(B) and why?
1500 families with 2 children were selected randomly and the following data were recorded:
number of girls in a family: 0 1 2
frequency: 211 814 475
if a family is chosen at random,compute the probability that it has:
1. no girl.
2. 1 girl.
3. 2 girls.
4. at most one girl.
5. more girls than boys.
A die is thrown 1000 times with frequency of outcome 1,2,3,4,5, and 6 as given below
outcome 1 2 3 4 5 6
Frequency 179 150 157 149 175 190
A die is thrown once again. Find the probability of outcome "greater than 3" ?
chech whether 7/6 can be an empirical probability or not. give reasons.
Eleven bags of wheat flour, each marked 5 kg, actually contained the following weights of flour (in kg):
4.97 5.05 5.08 5.03 5.00 5.06 5.08 4.98 5.04 5.07 5.00
Find the probability that any of these bags chosen at random contains more than 5 kg of flour.
2. Find the mode of the data : 12, 14, 23, 15, 14, 16, 22, 17, 14, 45, 29, 48, 14, 16.
3. A cube has numerically equal volume and surface area. Find the volume of such cube.
(i) An even number as the sum.
(ii) The sum as a prime number.
(iii) A total of at least 10.
(iv) A doublet of even number.
is a red or a black ball.
A bag contains 4 white balls and some red balls. If the probability of drawing a white ball from the bag is 2/5, find the number of red balls in the bag.
in a deck of cards how many red cards are there, how many black, how many aces, jokers, kings, queens and better tell me everything but fast please
in a lottery,there are 10 prizes and 25 blanks,a ticket is drawn randomly,theprobability of getting a prize is?
(m/n)x^2 + n/m = 1 - 2x
A box contains 50 bolts and 150 nuts. On checking the box ,it was found that half of the bolts and half of the nuts are rusted. If one item is chosen at random, find the probability that it is rusted.
1) probability of an event can be
a) -0.7 b) 11/0 c) 1.001 d) 0.6
2) a die is thrown once .the probability of getting a prime no. is ______________ ????
which of the following cannot br empirical probability of an event?
a] 4/5
b] 1
c] 0
d] 5/4
who was pierre fermat !:P???? nd who was blaise pascal ??
give meh the meanning of probability ??
what is the game chance ???
is probablity realated to games ,, if yes how ,,,?? if no den how ??/
A number x is chosen at random from the numbers -3.-2,-1,0,1,2,3. Find The probability that [x]<2
the mean age of 10 students of a class is 15 years. A student of age 14 years leaves the class and in his place age of their teacher is counted. This increased the mean age of group to 16 years. Find the age of the teacher.
A die is thrown 100 times.If the probability of getting an even number is 2/5.how many times an odd number is obtained?
when udar purchased an item online from australia for AUD 350.00, the exchange rate was 1000 INR for AUD 17.50 ( AUd = Australian Dollar) udars bank charged him 1.5% for the transaction.
the total cost of item was
two dice are thrown simuntaneously 500 times . each time the sum of two numbers appearing on them is not written
sum frequency
2 14
3 30
4 42
5 55
6 72
7 75
8 70
9 53
10 46
11 28
12 15
find the PROBABILITY of getting a sum
1)more than 10
2)between 8 and 12
recorded as in data below:
no. of plant survived less than 25 26-50 51-60 61-70 more than 70
no. of school 15 20 30 30 5
When a school is selected of random for inspection what is the probability of (i) more than 25 plants survived in school?
(i)A prime number less than 30?
(ii)A multiple of 5 and 7?
(iii)A multiple of 5 or 7?
Q-If the probability of winning a game is 0.4 what is theprobabilityof losing it ?
If x is the mean of n observations x1,x2,x3......xn.Then sigma ni=1 (x1-x) is ??
A RECENT SURVEY FOUND THAT THE AGES OF WORKERS IN FACTORY ARE DISTRJBUTED AS
AGE IN YRS 20-29,30-39.40-49,50-59,60 AND ABOVE
NO.OF WORKERS 38,27,86,46,3
IF A PERSON IS SELECTED AT RANDOM FIND THE PROBABILITY THAT THE PERSON IS
1. 40 YRS OR MORE
2.UNDER 40YRS
3.UNDER 60 BUT NOT OVER 39YRS
in a hurdle race, a player has to cross 10 hurdles. the probability that he will clear each hurdle is 5/6. what is the probability that he will knock down fewer than 2 hurdle????
50-32-12 not equal to 2
A die is rolled 50 times such that a prime number appeared on it 32 times and composite number appeared 12 times.
What is the probability of getting the number 1 on the die?
Number of times die is rolled = 50
Number of times prime number appeared = 32
Number of times composite number appeared = 12
It is known that:
2, 3, and 5 are prime.
4 and 6 are composite.
1 is neither prime nor composite.
∴ Number of times 1 appeared = 50 − 32 − 12 = 2
Probability is given by:
∴ Required probability
Thus, the probability of getting 1 is
.
The correct answer is C.
Three coins are tossed simultaneously 100 times with the following frequencies of different outcomes-
no head-14
one head-38
two heads-36
three heads-12
if the three coins are simultaneously tossed again,compute the probability of:
1. 2 heads coming up.
2. 3 heads coming up.
3. at least one head coming up.
4.getting more heads than tails.
5. getting more tails than heads.
a coin is tossed 1000 times with the following frequencies:
Head:455, Tail: 545
Compute The Probability for each event
sir thanks a lot for ur kind support during exams nd study material
my physics exam will be so so but english nd chem. is good..
nw hope for maths .... i lil scared
The percentage of marks obtained by a student in examination are given below:
Examination Subjects
I
II
III
IV
V
% Marks
58%
64%
76%
62%
85%
Find the probability that the student gets –
i) a first class in a subject i.e. at least 60% marks.
ii) A distinction in a subject i.e. at least 75% or above.
iii) Marks between 70% and 80% in a subject.
DEAR EXPERTS,
WHILE GOING THROUGH TEST 4 OF CH- PROBABILITY , I FOUND THAT IN Q.10 THE DECIMAL POINT IS MISSING RATHER IT IS THERE IN THE ANS.
PLS. CHECK!!!!!!!!!!
YOUR STUDENT..
A die is thrown 50 times and it shownedthe number of 23 times.find the probability of getting a number other than 1 in the next throw of the die.
From numbers 3, 5, 5, 7, 7, 7, 9, 9, 9, 9 one number is selected at random. The probability
a bag contains 4 white balls and some blue balls . if the probability of drawing a blue ball is trice that a white ball . find the no. of blue balls in the bag