# Question: Let y be a random variable having a normal distribution

Let y be a random variable having a normal distribution with a mean equal to 250 and a standard deviation equal to 50. Find the following probabilities:

a. P(y > 250)

b. P(y > 150)

c. P(150 < y < 350)

d. Find k such that P(250 –k <, y <, 250 + k) = .60 Basic

a. P(y > 250)

b. P(y > 150)

c. P(150 < y < 350)

d. Find k such that P(250 –k <, y <, 250 + k) = .60 Basic

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