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b.
80
70
No. of people observed 60
50
40
30
20
10
0
0 1 1.2 1.4 1.6 1.8 2
Heights (in m)
c.
80
70
No. of people observed 60
50
40
30
20
10
0
0 1 1.2 1.4 1.6 1.8 2
Heights (in m)
Ans. a. left skewed
b. not skewed
c. right skewed
11. A school has 900 books in its library. The books are grouped as per categories as follows:
Text Books Fiction Autobiographies Self-help books Magazines, Journals
150 400 50 125 175
Construct a pie-chart from the given data.
Ans. Total number of books = 900
Category of books Number of books Central Angle (degrees)
Text Books 150 60
Fiction 400 160
Autobiographies 50 20
Self-help books 125 50
Periodicals, journals 175 70
342 Touchpad Artificial Intelligence (Ver. 2.0)-XI

