Question

At a large high school 40% of students walk to school, 32% of students have been late to school at least once, and 37.5% of students Who walk to school have been late to school at least once. One student from the school will be selected at random. What is the probability that the student selected will be one who both walks to school and has been late to school at least once?

Answer 1

40 plus 32 72 plus 37.5 109.5 but it can only be 100% so probity is 9 %

Explanation:

Answer 2

The probability that the student selected will be one who both walks to school and has been late to school at least once is = 0.15 or 15%

Explanation:

From the question given, we find the probability that the student selected will be one who both walks to school and has been late to school at least once

Let,

B = Event that student walk to school

C = Event that student have been late to school at least once.

So,

P(B) = 0.40 , P(C) = 0.32

P(C | B) = 0.375

We apply the multiplication rule,

P(B and C) = P(C | B) * P(B)

= 0.375 * 0.40

= 0.15 or 15%