About what percent of x values lie between the first and second standard deviations from the mean (both sides)? About _________%Answeras a whole number.

Suppose that the distance of fly balls hit to the outfield (in baseball) is normally distributed with a mean of 250 feet and a standard deviation of 50 feet.

If one fly ball is randomly chosen from this distribution, what is the probability that this ball traveled fewer than 220 feet? To 2 decimal places

Answer: