Question

a.) 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.)

μ = 4.4; σ = 2.2

P(3 ≤ x ≤ 6) =

b.) Consider a normal distribution with mean 34 and standard deviation 2. What is the probability a value selected at random from this distribution is greater than 34? (Round your answer to two decimal places.)

c.) 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.)

μ = 27; σ = 3.4

P(x ≥ 30) =

Answer 1