Question
Find the value of 'a' in the given data if the mean of
the given data is 22. 14, 18, 20, 25, 27, 30, 24, a, 16, 20Solution
Sum of each term of given data = 10 × 22 = 220 So, 14 + 18 + 20 + 25 + 27 + 30 + 24 + a + 16 + 20 = 220 Or, 194 + a = 220 Or, 'a' = 26 Hence, option D.
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