Question

In Mr. Green's homeroom, 6 students have no siblings, 7 students have 1 sibling, 10 students have 2 siblings, and 3 students have 3 or more siblings. Is it likely that a student chosen at random will have only 2 siblings?

Answer 1

Answer: No, it is unlikely that a student chosen at random will have only 2 siblings.

Explanation:

Given: Number of students with 2 siblings = 10

Total students = 6+7+10+3 =26

The probability of choosing a student with only 2 siblings =
`\frac{\text{Number of students with 2 siblings}}{\text{Total siblings}}`

`=(10)/(26)\\\\=(5)/(13)\approx0.38<0.5`

Hence, it is not likely that a student chosen at random will have only 2 siblings.