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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

7.

The following table shows the daily earnings of 25 shops.

Find the probability that a shop earns :

(i) Rs 100 and above

(ii) At least Rs 60 but less than Rs 80

(iii) Less than Rs 40.

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

outcome= 1 2 3 4 5 6

frequency=89 75 78 73 88 97

find the probability of having an outcome:

1. number > 4

2. number< 4

3. number between 1 and 3

Q. Three coins are tossed simultaneously 200 times with the the following frequencies of different outcomes:OutcomeFrequency3 heads 232 heads 721 head 77no head 28How to find probability of getting:1. three heads 2. at least two heads 3. two heads and one taila coin is tossed 500 times and head appeared 300 times. find the sum of the probabaility of getting a head a nd the probability of getting a tail .

how to write a maths project for icse class ix on planning a delivery route for a postman

Find the probability of getting:

(a) an even number

(b) an odd number greater than 1. getting 1

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?

the probability of any event of an experiment is-

(a) 1

(b) 0

(c) greater than 1

(d) lies between 0 and 1 (both inclusive)

give me chapter wise weightage of all the chapter in maths of sa2 exam..

Find the probability of getting either 1 or 3?

9. In a cricket match, a batsman hits a boundary 6 times out of 36 balls he plays. Find the probability that he did not hit a boundary?

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 .

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

What is the probability of getting 53 Sundays in a leap year and in a non leap year?

(a) $1-\frac{1}{2\left(\sqrt{3}\right)}$ (b) $1-\frac{\mathrm{\pi}}{3\left(\sqrt{3}\right)}$ (c) $1-\frac{\mathrm{\pi}}{2\sqrt{3}}$ (d) $1-\frac{2\mathrm{\pi}}{3\sqrt{3}}$

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

in tossing a coin 100 times tail appears 56 times. what is the probability of head for the coin?

Three coins are tossed simultaneously 200 times with the following frequencies of different outcomes:3 heads 232 heads 721 head 77no heads 28find the probability of getting( i) 3 heads(ii) at least 2 heads

(iii) two heads and one tailFind the probability that a selected person is a woman. Plz answer

3 of the 6 vertices of a regular hexagon are chosen at random find the probability that the triangle with three vertices is equilateral.

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.

chech whether 7/6 can be an empirical probability or not. give reasons.

head =255

tail = 245

compute the probability of each event ????

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.

_{1, X2,X3....Xn is 72 , Find The Mean Of The Data 3X1,3X2....3XN}(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.

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.

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.

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

(m/n)x^2 + n/m = 1 - 2x

13. A word and number arrangement machine when given an input line of words and numbers , rearranges them following a particular rule in each step. The following is an illustration of input and rearrangement.

Input : 40 made butter 23 37 cookies salt 52 86 92 fell now 19

Step I: butter 19 40 made 23 37 cookies salt extra 52 86 92 fell now

Sutter II : cookies 23 butter 19 40 made 37 salt extra 52 86 92 fell now

Step III : extra 37 cookies 23 butter salt 19 40 made salt 52 86 92 now

step IV : fell 40 extra 37 cookies 23 butter 19 made salt 52 86 92 now

Step V : made 52 fell 40 extra 37 cookies 23 butter 19 salt 86 92 now

Step VI : now 86 made 52 fell 40 extra 37 cookies 23 butter 19 salt 92

Slep VII : salt 92 now 86 made 52 fell 40 extra 37 cookies 23 butter 19

Step VII is the last step o the arrangement.

As per the rules followed in the steps, find out the appropriate steps for the given input and answer the question follows.

Input : 32 proud girl beautiful 49 58 97 rich family 61 72 17 nice life

What is the position of 'nice' from the left end in the step?

A Fifth

B. Tenth

C. Seventh

D. Eighth

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.

which of the following cannot br empirical probability of an event?

a] 4/5

b] 1

c] 0

d] 5/4

Teachers and Students are selected at random to make two teams of 20 members each on sports day to participate in the event of ''tug of war''. The numbers of volunteers are as follows:

Teachers= Male 12 and Female 18, Students=male 20 and Female 10.

Find the probablility that the person chosen at random

a. is a male

b. is a female student.

A number x is chosen at random from the numbers -3.-2,-1,0,1,2,3. Find The probability that [x]<2

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?

x, x+2, x+4, x+6, x+8, is 13, then find the value of x and then median. Answer plz

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

A die is thrown 1000 times with frequency of outcome 1,2,3,4,5, and 6 as given below

outcome1 2 3 4 5 6Frequency 179 150 157 149 175 190A die is thrown once again. Find the probability of outcome "greater than 3" ?(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 ?

outcome: 1,2,3,4,5,6

Frequency: 35,45,50,38,53,29

Find the probability of getting an odd number.

If a student is chosen at random find the probability that is a student of either commerce or humanities stream.

If a school is selected at random, find the probability that the school is having

(i) minimum fee

(ii) maximum fee

(iii) fee of atmost Rs 1000

(iv) fee between Rs 1000 and Rs 1500

If x is the mean of n observations x

_{1},x_{2},x_{3}......x_{n}.Then sigma^{n}_{i=1}(x_{1}-x) is ??9. From a pack of cards, a card is drawn at random. Find the probability of getting a red card.

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

A code is drawn at random to allot an employee. The probability that the code have at least two digit is:

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?

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????

(A) 2 (B) 4 (C) 6 (D) 5

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 ?

Games cricket football Tennis badminton

No of students 115 35 16 34 A student is chosen a random. Find the probability that he plays neither cricket nor football.

(i) Less than 10 kg of flour

(ii) Exactly 10 kg of flour

a coin is tossed 1000 times with the following frequencies:

Head:455, Tail: 545

Compute The Probability for each event

Using your results, find the relative frequency of

(i) Heads (ii) Tails.

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.

From numbers 3, 5, 5, 7, 7, 7, 9, 9, 9, 9 one number is selected at random. The probability

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.

9.5, 10.3, 10.2, 10.1, 10, 10.7, 9.8, 10.4, 9.7, 10.5, 9.7, 9.6

Find the probability that any of these bags chosen at random contains more than 10 kg of cement.

(a) Probability of an event always lies between 0.05 and 1.

(b) P(E)= Total number of trials / Number of trials in which E has happened