Question

What is the experimental probability that a 10th-grade student chosen at random has at least one, but no more than two, siblings? Round to the nearest whole percent.

Answer 1

Answer is B

or 70%

Answer 2

Answer: The experimental probability is 70 %

Explanation:

According to the given question have to find that the experimental probability that a 10th-grade student chosen at random has at least one, but no more than two, siblings

As we know that,

`Probability = (number of favourable outcomes)/(total possible outcomes)`

If 10th-grade student chosen at random has at least one, but no more than two, siblings

Therefore, there can be one or two siblings

Such that, the total number of such students
`=18+10=28`

Now, number of favorable outcomes =28 and total number of students

`=4+18+10+8=40`

Now,

`Probability = (number of favourable outcomes)/(total possible outcomes)`

`Probability = (28)/(40)* 100=(280)/(4)=70%` %