Question
Find the value of 'a' in the given data if the mean of
the given data is 16. 10, 12, 18, 20, 15, 17, a, 14, 13, 19Solution
Sum of each term of given data = 10 × 16 = 160 So, 10 + 12 + 18 + 20 + 15 + 17 + a + 14 + 13 + 19 = 160 Or, 138 + a = 160 Or, 'a' = 22 Hence, option C.
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