Question

In a class experiment, Debra finds that the probability that a student has more than three siblings is 3/25 . If the school population is 350, how many students would we expect to have more than three siblings, based on Debra's experiment? A)15 B)25 C)35 D)42

Answer 1

choice D) 42 is the final answer.

Explanation:

Population of the school = 350

Debra finds that the probability that a student has more than three siblings is
`=\left((3)/(25)\right)`

Then the number of students that we expect to have more than three siblings, based on Debra's experiment
`=350\cdot\left((3)/(25)\right)`

`=\left((1050)/(25)\right)`

`=42`

Hence choice D) 42 is the final answer.