Question

There are 42 students 21 are in 7th grade 14 are in 8th 7 are in ninth whats the probability of an eighth grader winning

Answer 1

The probability of an eighth grader winning is 1/3

Explanation:

Total no. of students = 42

Number of students in 7th grade = 21

Number of students in 8th grade = 14

Number of students in 9th grade = 7

Probability of event =
`\frac{\text{Favorable outcomes}}{\text{Total outcomes}}`

So,the probability of an eighth grader winning=
`(14)/(42)=(2)/(6)=(1)/(3)`

Hence The probability of an eighth grader winning is 1/3