# stats

posted by
**dometrice** on
.

An athletic director found that 31% of the football players have an A average in school. If 2% of the students at the school play football, what is the probability that a student chosen at random will be a football player with an A average?

suppose a normal distribution has a true population mean of 18 and a true standard deviation of 2. What % of observations will be 18 or less?