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

Answer:

choice D) 42 is the final answer.

Step-by-step explanation:

Population of the school = 350

Debra finds that the probability that a student has more than three siblings is $=\left(\frac{3}{25}\right)$

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

$=\left(\frac{1050}{25}\right)$

$=42$

Hence choice D) 42 is the final answer.