For the past two weeks, Kiwa has been recording the number of people surveyed visiting the library at lunchtime. During that time, there were 50 or more people at the library 9 out of 14 days.
a What is the experimental probability that there will be 50 or more people at the library during lunchtime on the fiftheenth day?
b What is the experimental probability that there will not be 50 or more people at the library during lunchtime on the fifteenth day?

A) the experimental probability that there will be 50 or more people at the library during lunchtime on the fifth day is 64.28%, and B) the experimental probability that there will not be 50 or more people at the library during lunchtime on the fifteenth day is 35.72%.

Probability

Given that for the past two weeks, Kiwa has been recording the number of people surveyed visiting the library at lunchtime, and during that time, there were 50 or more people at the library 9 out of 14 days, to determine A) what is the experimental probability that there will be 50 or more people at the library during lunchtime on the fifteenth day, and B) what is the experimental probability that there will not be 50 or more people at the library during lunchtime on the fifteenth day, the following calculations must be performed :

14 = 100
9 = X
9 x 100 / 14 = x
900 / 14 = X
64.28 = X
100 - 64.28 = 35.72

Therefore, A) the experimental probability that there will be 50 or more people at the library during lunchtime on the fifth day is 64.28%, and B) the experimental probability that there will not be 50 or more people at the library during lunchtime on the fifteenth day is 35.72%.

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