Question

state how many peaks you would expect for the distribution described. sales of birthday cards over a one - year period a. three b. one c. none d. two

Explanation:

Birthday cards are sold throughout the year. There is no specific season or multiple seasons that would cause distinct multiple peaks. The sales would be relatively consistent with maybe a slight increase around common birthday - having times (but not enough to form multiple peaks). So, it is a unimodal distribution (one peak).

Answer:

B. One