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liraira [26]
3 years ago
7

The librarian continues to record the type of item that the next 20 patrons check out from the library. patron item type 11 fict

ion book 12 non-fiction book 13 fiction book 14 fiction book 15 fiction book 16 non-fiction book 17 fiction book 18 non-fiction book 19 fiction book 20 DVD 21 fiction book 22 non-fiction book 23 fiction book 24 fiction book 25 audiobook 26 fiction book 27 DVD 28 non-fiction book 29 fiction book 30 DVD Based on the information from these patrons, estimate the probability that the next patron will check out a fiction book.
Mathematics
1 answer:
Ludmilka [50]3 years ago
3 0

Answer:

Pr = 0.55

Step-by-step explanation:

Given

Represent the dataset with the following frequency table

\begin{array}{cc}{Item} & {Frequency} & {Fiction\ Book} &{11} & {Non\ Fiction\ Book} & {5}  & {DVD} & {3} & {Audiobook} & {1}  \ \end{array}

Required

Probability that the next checkout will be fiction

From the above frequency table, we have:

Fiction\ Book = 11

n =20 --- total

So, the probability that the next checkout item is a fiction book is:

Pr = \frac{Fiction\ Book}{n}

Pr = \frac{11}{20}

Pr = 0.55

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