Question

Class 11 maths ( If mean of a distribution is 1 and its variance is 2.25, then its coefficient of variation is ________.)

Answer 1

Answer:

Correct option is

C

2.32

Given, mean

x

ˉ

=4, and coefficient of variation =58 %

If S.D of the given distribution is σ then we know that,

Coefficient of variation =

x

ˉ

σ

×100 %

⇒58=

4

σ

×100⇒σ=

100

58×4

=2.32

Answer 2

Step-by-step explanation:

Given If mean of a distribution is 1 and its variance is 2.25, then its coefficient of variation is

• So Mean = 1
• Variance = 2.25
• We need to find the value of standard deviation in order to get coefficient of variation.
• Standard deviation is the square root of variance
• So standard deviation σ = √2.25
•                                      = 1.5
• So we get
• Coefficient of variation = σ / x bar x 100
•                                      = 1.5 / 1 x 100
•                                      = 150
• Therefore coefficient of variation is 150

Reference link will be

https://brainly.in/question/10048466