Question

a class has 15 boys and 16 girls. what is the probability that a boy's name is drawn at random? 15/31 16/31 15/16 16/15

Answer 1

15 boys and 16 girls....total is (15 + 16) = 31

probability that a boys name is drawn : boys/total ppl = 15/31

Answer 2

The answer is
`(15)/(31)`

Explanation:

In order to determine the probability, we have to know the classical probability.

Classical probability is a simple form of probability that has equal odds of something happening. The probability of a simple event happening is the number of times the event can happen, divided by the number of possible events.

Given:

A=amount of favorable outcomes

B=amount of possible outcomes

E=event

`P(E)=(A)/(B)`

So that, we have to determine:

the amount of possible outcomes:

B=15 boys + 16 girls =31

the amount of favorable outcomes:

A=15 boys

E= boy's name is drawn at random event

`P(E)=(15)/(31)`

Finally, the answer is
`(15)/(31)`