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Properties of Measures of Central Tendency

Find the mean...

Question

Find the mean, median, mood
C.I. F.I.
0-10 20
10-20 5
20-30 35
30-40 25
40-50 15

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Solution

Mean $= \frac{\sum f x}{\sum f}, \frac{2600}{100}, 26$
Mode $= 20 - 30, 25$
Hence, solved.

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Properties of Measures of Central Tendency

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