a college math class of 50 students, 23 are boys and 27 are girls. On the final exam, 15 boys and 14 girls made an A. What is the probability of choosing a boy or an A student if a student is chosen at random from the class?

Respuesta :

The answer you are looking for is 37/50.

To find this answer, you add together how many boys are in the class with how many students got an A. Since there are 23 boys in the class, and 15 of them got an A, you use 23 since it accounts for all the boys. That being said, you add the 14 girls who got an A, to the 23 boys in the class to get your final answer.

I hope this helps!

Answer:

37

__

50

is the probability of choosing a boy or an A student.

Step-by-step explanation:

Use the addition rule: P(A or B) = P(A) + P(B) − P(A and B).

P(boy or A) = P(boy) + P(A) − P(boy and A)

=

23

50

+

29

50

15

50

=

37

50

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