Question

Assume that x has a normal distribution with the specified mean and standard deviation. Find the indicated probability. (Round your answer to four decimal places.)

? = 4.6; ? = 1.9

P(3 ? x ? 6) =

Assume that x has a normal distribution with the specified mean and standard deviation. Find the indicated probability. (Round your answer to four decimal places.)

? = 28; ? = 4.2

P(x ? 30) =

Consider a normal distribution with mean 36 and standard deviation 9. What is the probability a value selected at random from this distribution is greater than 36? (Round your answer to two decimal places.)

Answer 1