• #### 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.

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• Topic wise:statistics preparation in the form of QUESTION & ANSWER.
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a) 13
b) 11
c) 12
d) 15

##### 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

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

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

##### is the formula for

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

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

##### The data collected by the person rather than investigator is known as

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

##### Mean of the squares of the deviations from mean is called the:

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

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

##### 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.

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