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Chapter 4: Q. 34 (page 285)

What does the column "x*P(x)" sum to and why?

Short Answer

Expert verified

The sum of column x*P(x) gives4.42

Step by step solution

01

Given information

The given information in Q. 30 table is considered for simplifying this problem

xP(x)
10.1
20.05
30.1
40.13
50.3
60.2
70.1
02

Explanation

The value of xP(x) is calculated as follows:

xP(x)x*P(x)
10.10.1
20.050.1
30.10.3
40.130.52
50.31.5
60.21.2
70.10.7

The sum of column x*P(x) gives 4.42

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