Question

A store owner made a list of the number of greeting cards sold last month. The store sold 167 thank you cards, 285 birthday cards, and 56 blank cards. Based on this data, which number is the closest to the probability that the next customer will buy a blank card?

a) 0.11
b) 0.33
c) 0.56
d) 0.89

Answer 1

A) 0.11 would be the closest estimate.

We find the total number of cards sold:

167+285+56 = 508

Out of those, 56 were blank. This gives us a probability of 56/508 = 0.11.