# Question: Suppose that the distribution of order sizes in dollars at

Suppose that the distribution of order sizes (in dollars) at L.L. Bean has a distribution that is T(0, 25, 75).

(a) Find the mean.

(b) Find the standard deviation.

(c) Find the probability that an order will be less than $25.

(d) Sketch the distribution and shade the area for the event in part (c).

(a) Find the mean.

(b) Find the standard deviation.

(c) Find the probability that an order will be less than $25.

(d) Sketch the distribution and shade the area for the event in part (c).

**View Solution:**## Answer to relevant Questions

Suppose that the distribution of oil prices ($/bbl) is forecast to be T(50, 65, 105). (a) Find the mean. (b) Find the standard deviation. (c) Find the probability that the price will be greater than $75. (d) Sketch the ...Discuss why you would or would not expect each of the following variables to be normally distributed. a. Time for households to complete the U.S. Census short form. b. Size of automobile collision damage claims. c. Diameters ...The caffeine content of a cup of home-brewed coffee is a normally distributed random vari- able with a mean of 115 mg with a standard deviation of 20 mg. (a) What is the probability that a randomly chosen cup of home-brewed ...The time it takes to give a man a shampoo and haircut is normally distributed with mean 22 minutes and standard deviation 3 minutes. Customers are scheduled every 30 minutes. (a) What is the probability that a male customer ...Times for a surgical procedure are normally distributed. There are two methods. Method A has a mean of 28 minutes and a standard deviation of 4 minutes, while method B has a mean of 32 minutes and a standard deviation of 2 ...Post your question