The data come from the records of an estate agent and relate to sales of private houses. A random sample of sales was taken from the records and the following table gives the frequency of each type of sale.   1 bedroom 2 bedrooms 3 bedrooms 4 bedrooms Totals Central 8 7 6 3 24 Suburbs 4 12 14 7 37 Totals 12 19 20 10 61   If one of the properties is chosen at random, the probability that it is a 3 bedroom house, given that it has fewer than 4 bedrooms, is

A First Course in Probability (10th Edition)
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ISBN:9780134753119
Author:Sheldon Ross
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Chapter1: Combinatorial Analysis
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Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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The data come from the records of an estate agent and relate to sales of private houses.

A random sample of sales was taken from the records and the following table gives the frequency of each type of sale.

  1 bedroom 2 bedrooms 3 bedrooms 4 bedrooms Totals
Central 8 7 6 3 24
Suburbs 4 12 14 7 37
Totals 12 19 20 10 61

 

If one of the properties is chosen at random, the probability that it is a 3 bedroom house, given that it has fewer than 4 bedrooms, is (3 d.p.):

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