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Get Full Access to Probability And Statistical Inference - 9 Edition - Chapter 1.2 - Problem 15e
Get Full Access to Probability And Statistical Inference - 9 Edition - Chapter 1.2 - Problem 15e

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# Prove Equation 1.2-2. Hint: First select n1 positions in

ISBN: 9780321923271 41

## Solution for problem 15E Chapter 1.2

Probability and Statistical Inference | 9th Edition

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Problem 15E

PROBLEM 15E

Prove Equation 1.2-2. Hint: First select n1 positions in  ways, Then select n2 from the remaining n - n1 position in ways and so on. Finally, use the multiplication rule.

Step-by-Step Solution:

Step 1 of 1 :

The claim is to prove  =

We have,  positions in  ways and then select  from the n -   ways

We have to use the multiplication rule.

We have to arrange n objects

can place  ways

And   can place  ways

Similarly,

Therefore,

=  ……...

=

Hence the proof

Step 2 of 1

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