RD Sharma Class 11 Solutions Chapter 32 Statistics Exercise 32.7 (Updated for 2021-22)

RD Sharma Solutions Class 11 Maths Chapter 32 Exercise 32.7: In this section, we’ll look at how to compare two or more series using various metrics of dispersion. Our expert faculty team’s solutions assist students in achieving full marks in Maths by assisting them in their board preparation. This page’s solutions section offers extensive step-by-step explanations for all of the problems in this chapter. Solving RD Sharma Class 11 Maths Solutions is a necessary if you want to get a good grade. Here are the RD Sharma Solutions for Class 11 Chapter 32, which include detailed solutions of exercise 32.7. This exercise pdf can be downloaded using the links provided to students.

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RD Sharma Solutions Class 11 Maths Chapter 32 Exercise 32.7

Access answers to RD Sharma Solutions Class 11 Maths Chapter 32 Exercise 32.7- Important Question with Answers

1. Two plants A and B of a factory show the following results about the number of workers and the wages paid to them

In which plant A or B is there greater variability in individual wages?

Solution:

Variation of the distribution of wages in plant A (σ² =18)

So, the Standard deviation of the distribution A (σ – 9)

Similarly, the Variation of the distribution of wages in plant B (σ² =100)

So, the Standard deviation of the distribution B (σ – 10)

And, Average monthly wages in both the plants is 2500,

Since the plant with a greater value of SD will have more variability in salary.

∴ Plant B has more variability in individual wages than plant A

2. The means and standard deviations of heights and weights of 50 students in a class are as follows:

Which shows more variability, heights, or weights?

Solution:

3. The coefficient of variation of the two distributions are 60% and 70%, and their standard deviations are 21 and 16 respectively. What is their arithmetic means?

Solution:

4. Calculate the coefficient of variation from the following data:

Solution:

5. An analysis of the weekly wages paid to workers in two firms A and B, belonging to the same industry gives the following results:

(i) Which firm A or B pays out the larger amount as weekly wages?
(ii) Which firm A or B has greater variability in individual wages?

Solution:

Statistics Ex 32.7 Q6

Statistics Ex 32.7 Q7

Statistics Ex 32.7 Q8


Statistics Ex 32.7 Q9

Statistics Ex 32.7 Q10

We have provided complete details of RD Sharma Solutions Class 11 Maths Chapter 32 Exercise 32.7. If you have any queries related to CBSE Class 11, feel free to ask us in the comment section below.

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