# the blood group group of students from class IX are collected and recorded as below : blood group :              A    B     AB     O number of students : 12    9        7       6 if a student is chosen at random ,find the probability that he or she is a universal donar (O blood group)

Dear Student,

Probability of occuring of event = No.of times the event occured/total no. of outcomes
No.of times the event occured = 6
Total no. of outcomes = 34
p (getting 0 blood group)=6/34=3/17

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• 1
Now why are you using meritnation coz of this only you had your English exam bad right like that only you will have a bad maths exam too ????
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6/34
• 0
probability of occuring of event=no.of outcomes in which the event occur/total no. of possible outcomes
no.of times the event occured=6
total no. of outcomes=36
p(of getting O blood group)=6/36=1/6
• 0
sry
probability of occuring of event = no.of times the event occured/total no. of outcomes
no.of times the event occured = 6
total no. of outcomes = 34
p (getting 0 blood group)=6/34=2/17
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and I wanted to say u one thing
u r not suppose to talk to the experts in the ill manner
for me all my experts and teachers are equivalent to GOD.
I am not going tolerate anything ill about them.