Question

The price of one pound of commercial grade marijuana in City A is normally distributed with a mean of $1000 and a standard deviation of $133.

a. What is the z score for 1 lb of commercial grade marijuana costing $1,135 in City A?

b. What is the probability of purchasing 1lb of commercial grade marijuana in City A for $800 or less? Draw the curve.

c. Give an interval of values that you could expect 68% of observed prices of 1lb of commercial grade marijuana in City A to cost, according to the Empirical rule? (Show work)

d. In City B, The average cost of 1lb of commercial grade marijuana is $850 and the standard deviation is $50. Which city has more variation in marijuana prices? How do you know?

Answer 1