The table below is based on the data at the beginning of this chapter and shows the probability of the next book requested falling into each of the three categories listed, assuming that each book is equally likely to be requested. Category of book Typical numbers Probability On the shelves (S) 20 000 0.25 Out on loan (L) 44000 0.55 Unauthorised loan (U) 16000 0.20 Total (S + L+ U) 80 000 What is the probability that a randomly requested book is either out on loan or on unauthorised loan (i.e. that it is not available)?

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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The table below is based on the data at the beginning of this chapter and
shows the probability of the next book requested falling into each of the three
categories listed, assuming that each book is equally likely to be requested.
Category of book
Typical numbers
Probability
On the shelves (S)
20000
0.25
Out on loan (L)
44000
0.55
Unauthorised loan (U)
16000
0.20
Total (S + L + U)
80 000
1
What is the probability that a randomly requested book is either out on loan
or on unauthorised loan (i.e. that it is not available)?
Transcribed Image Text:The table below is based on the data at the beginning of this chapter and shows the probability of the next book requested falling into each of the three categories listed, assuming that each book is equally likely to be requested. Category of book Typical numbers Probability On the shelves (S) 20000 0.25 Out on loan (L) 44000 0.55 Unauthorised loan (U) 16000 0.20 Total (S + L + U) 80 000 1 What is the probability that a randomly requested book is either out on loan or on unauthorised loan (i.e. that it is not available)?
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