NCERT Solutions for Class 11 Maths Chapter 15 Statistics

Statistics Class 11 Maths NCERT Solutions are extremely helpful while doing your homework. NCERT Solutions for Class 11 Maths Chapter 15 Statistics All Exercises were prepared by Experinced Manabadi Teachers.

Free download NCERT Solutions for Class 11 Maths Chapter 15 Statistics Ex 15.1, Ex15.2, Ex 15.3 and Miscellaneous Exerecise PDF in English Medium for CBSE, Uttarakhand,Bihar,MP Board, Gujarat Board, BIE Intermediate and UP Board students, who are using NCERT Books based on updated CBSE Syllabus for the session 2019-20.

NCERT Solutions for Class 11Maths chapter 15 Exercise 15.1

EX 15.1 Class 11 Maths Question 1:

4, 7, 8, 9, 10, 12, 13, 17

Mean of the given data is

EX 15.1 Class 11 Maths Question 2:

38, 70, 48, 40, 42, 55, 63, 46, 54, 44

Mean of the given data is

EX 15.1 Class 11 Maths Question 3:

13, 17, 16, 14, 11, 13, 10, 16, 11, 18, 12, 17

Arrranging the data in ascending order, we have

10, 11, 11, 12, 13, 13, 14, 16, 16, 17, 17, 18

Here n = 12 (which is even)

So median is the average of 6thand 7th observations

NCERT Solutions for Class 11Maths chapter 15 Exercise 15.2

EX 15.2 Class 11 Maths Question 1:

6, 7, 10, 12, 13, 4, 8, 12

Here x_i = 6, 7, 10, 12, 13, 4, 8, 12

EX 15.2 Class 11 Maths Question 2:

First n natural numbers

Here x_i = 1, 2, 3, 4,..........n

EX 15.2 Class 11 Maths Question 3:

First 10 multiples of 3

Here x_i = 3, 6, 9, 12, 15, 18, 21, 27, 30,

NCERT Solutions for Class 11Maths chapter 15 Exercise 15.3

EX 15.3 Class 11 Maths Question 1:

From the data given below state which group is more variable, A or B?

EX 15.3 Class 11 Maths Question 2:

From the prices of shares X and Y below, find out which is more stable in value:

Class 11 Maths NCERT Solutions - Miscellaneou Questions

Miscellaneous Exercise Clss 11 Maths Question 1:

The mean and variance of eight observations are 9 and 9.25, respectively. If six of the observations are 6, 7, 10, 12, 12 and 13, find the remaining two observations.

Let the remaining two observations be x and y.

Therefore, the observations are 6, 7, 10, 12, 12, 13, ,x y.

Miscellaneous Exercise Clss 11 Maths Question 2:

The mean and variance of 7 observations are 8 and 16, respectively. If five of the observations are 2, 4, 10, 12 and 14. find the remaining two observations.

Let the remaining two observations be x and y.

Therefore, the observations are 2, 4, 10, 12, 14, ,x y.

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• Sagar singh
• 2022-March-22 18:00:44

I want glossary PDF

• Anuradha Rawat
• 2021-September-18 08:27:43

Very much composed answers

• Mayank
• 2021-March-26 11:24:00

Ok

• Ramu
• 2020-May-05 15:49:15

NCERT Solutions For Class 11