Consider the continuous random variables that follow.

Give the probability distribution (uniform, normal, or exponential)

that is likely to best approximate the distribution of the random variable:

a. The weekly wage distribution of workers in a factory

b. The lifetime of a light bulb.

c. The systolic blood pressure (in mmHg) of an individual selected at random from a certain population.

d. Difference between test scores for tests taken at two different times