Question

A supermarket sells two flavors of cereal: a fruit flavor and a chocolate flavor. In a market survey, the event that a customer says he or she is willing to buy the fruit flavor is considered a success. Records for the past 5 years show that an average of 71% of the customers buy the fruit-flavored cereal. If 20 cereal buying customers walk into the supermarket, what is the probability that at the most 19 of them will buy the fruit-flavored cereal?
Hint: (1 – P(X > 19)

Answer 1

A. 0.0086
B. 0.0010
C. 0.0097
D. 0.9902
E. 0.9989

Answer 2

@AloneS

Answer 3

@Dani_Rose

Answer 4

@Preetha

Answer 5

@Zelda

Answer 6

@skullpatrol

Answer 7

@Directrix

Answer 8

@Emmanuel77M Don't remember this class. Too long ago. Sorry. :(

Answer 9

@mathmale