On a recent Saturday, a total of 1100 people visited a local library. Of these people, 260 were under age 10, 496 were aged 10–18, 180 were aged 19–30, and the rest were more than 30 years old. One person is sampled at random. What is the probability that the person is less than 19 y
A)0.451
B)0.687
C)0.756
D)0.236

Question

Quizplus · Accepted Answer

The probability that a person is less than 19 years old is the sum of those under age 10 and those aged 10–18, divided by the total number of visitors: (260 + 496) / 1100 = 756 / 1100 = 0.687.

On a Recent Saturday, a Total of 1100 People Visited