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?

Question

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?

Answer 1

If the events are independent, the probability of both/all events occurring is determined by multiplying the probabilities of the individual events.

In a normal distribution, mean = mode = median. What is the definition of median?

Answer 2

0.62%