Post a New Question

Math

posted by on .

The probability that a 12 yr old has a sibling is 25%. Suppose you surveyed 300 12 yr olds? About how many do you think will have a sibling?

  • Math - ,

    Most likely 75, (1/4 of 300) but with a standard deviation of about 7.5.

Answer This Question

First Name:
School Subject:
Answer:

Related Questions

More Related Questions

Post a New Question