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  • Class 11 Maths Study Material

An Educational platform for Preparation and Practice Class 11. Kidsfront provide unique pattern of learning Maths with free online comprehensive study material in the form of QUESTION & ANSWER for each Chapter of Maths for Class 11. This study material help Class 11, Maths students in learning every aspect of statistics. Students can understand statistics concept easily and consolidate their learning by doing Online Practice Tests on Maths,statistics chapter repeatedly till they excel in Class 11, statistics. Free ONLINE PRACTICE TESTS on Class 11, statistics comprise of Hundreds of Questions on statistics, prepared by the highly professionals team. Every repeat test of statistics will have new set of questions and help students to prepare themselves for exams by doing unlimited Online Test exercise on statistics. Attempt ONLINE TEST on Class 11,Maths,statistics in Academics section after completing this statistics Question Answer Exercise.

Unique pattern

  • Topic wise:statistics preparation in the form of QUESTION & ANSWER.
  • Evaluate preparation by doing ONLINE TEST of Class 11, Maths,statistics.
  • Review performance in PRACTICE TEST and do further learning on weak areas.
  • Attempt repeat ONLINE TESTS of Maths statistics till you excel.
  • Evaluate your progress by doing ONLINE MOCK TEST of Class 11, Maths, All TOPICS.

The mean deviation of the following data 10,30,20,50,40 is

a) 13
b) 11
c) 12
d) 15

Correct Answer Is : 12
Solution Is :
The data collected by the investigator himself is known as a

a) Primary data
b) Secondary data
c) Staring data
d) None of the above

Correct Answer Is : Primary data
Solution Is :
The variance for the following data:

a) 323.32
b) 294.34
c) 12.3
d) 12.02

Correct Answer Is : 294.34
Solution Is :
The variance of following data 5, 6, 4, 2, 3, 8, 9 is:

a) 4.58
b) 2.32
c) 32.32
d) 12.32

Correct Answer Is : 4.58
Solution Is :
is the formula for

a) Mean Deviation about median
b) Mean Deviation about mean
c) Mean Deviation
d) Standard Deviations

Correct Answer Is : Mean Deviation about median
Solution Is :
The variance of following data 2,5,4,3,7,8,6 is:

a) 4
b) 3
c) 5
d) 8

Correct Answer Is : 4
Solution Is :
The data collected by the person rather than investigator is known as

a) Secondary data
b) Primary data
c) Personal data
d) Tertiary data

Correct Answer Is : Secondary data
Solution Is :
Mean of the squares of the deviations from mean is called the:

a) A.M.
b) Standard deviation
c) Mode
d) Variance

Correct Answer Is : Variance
Solution Is :
The mean deviation of the following data 101,102,103,104,105,106 is:

a) 2.5
b) 1.3
c) 1.22
d) 1.5

Correct Answer Is : 1.5
Solution Is :

In regression analysis, If r = 0, ? = Π / 2 , then

a) Two regression lines are parallel to each other.
b) Two regression lines are perpendicular to each other.
c) Two regression lines are coincide to each other.
d) Two regression lines are not exists.

Correct Answer Is : Two regression lines are perpendicular to each other.
Solution Is :
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