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Class 11 Measures of Central Tendency worksheet
CBSE Social Science. Arithmetic mean (direct, assumed mean and step deviation), weighted mean, median, quartiles, percentiles and mode. Every sheet has 20 questions in three sections and an answer key, and the numbers change every time.
Sample questions
Real questions from this chapter, as the app sets them. Tap Answer to see the answer and working.
Section A · multiple choice
- 1.
The sum of observations divided by their number is the:
- mode
- range
- median
- arithmetic mean
Answer
(d) arithmetic mean
- 2.
Find the arithmetic mean of 86, 89, 81, 63, 83, 84.
- 81
- 82
- 486
- 89
Answer
(a) 81
486 ÷ 6 = 81
- 3.
Find the median of 10, 88, 20, 24, 46, 22, 67.
- 49
- 39.57
- 25
- 24
Answer
(d) 24
in order: 10, 20, 22, 24, 46, 67, 88; the middle value
Section B · short answer
- 4.
What is a measure of central tendency?
Answer
A single value that represents a whole set of data, such as the mean, median or mode.
- 5.
Find the mean of 65, 59, 47, 50, 29 by the assumed mean method, taking A = 60. Show Σd.
Answer
Σd = −50; mean = 50
d = X − 60; mean = 60 + Σd ÷ 5
Section C · long answer
- 6.
Compare the mean, median and mode.
Answer
The mean uses all values but is pulled by extremes; the median is the middle value and resists extremes; the mode is the most frequent value and suits the most typical size or choice.
Fresh sheets for your child
In the app, every Measures of Central Tendency sheet is new: the app remembers the questions your child has already had and leaves them out. Print the sheet as a PDF, or use notebook mode and write the answers in a notebook.
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