The random variable x has a normal distribution with p = 1,000andcr = 10.

a. Find the probability that x assumes a valuc more than 2 standard deviations from its mean. More than 3 standard deviations from p.

h. Find the probability that x assumes a value within 1 standard deviation of its mean. Within 2 standard deviations of p.

c. Find the value of x that represents the 80th percentile of this distribution.The 10th percentile.