# statistics

posted by
**yogi** on
.

Forty percent of participants in a soccer league are nine years old, 30% are eight, 20% are seven, and 10% are

six. What is the expected value of the age and the standard deviation?

posted by
**yogi** on
.

Forty percent of participants in a soccer league are nine years old, 30% are eight, 20% are seven, and 10% are

six. What is the expected value of the age and the standard deviation?