For question #3, sketch a Normal curve to model the situation and find each

percentage.

3. A bookstore has determined that weekly sales of a pop culture magazine can be

modeled by an approximately Normal distribution with a mean of 75 copies and a

standard deviation of 6 copies.

a) For what percentage of the weeks can the store expect to sell between 70 and 85

copies of the magazine?

b) For what percentage of the weeks can the store expect to sell less than 66

magazines?