The customers for a particular store have the average age of 44 with standard deviation of 5.3 years. We can assume that the distribution is Normal (Gaussian). Answer the following questions either via simulations (use 10000 points) or via "rule of thumbs".

I). What is the approximate probability that a randomly picked person from this group will be 49 years or older? Pick the closest answer. (6.66 points)

• a. About 11%
• b. About 17%
• c. About 21%
• d. About 26%