Question

If the mean of the following data is 6, find the value of 'k'

Answer 1

Answer : Value of k=6

Step-by-step explanation:

Mean is sigma xifi / sigma fi

Mean = 2(5) +5(k)+8(7)+9(4) / 16+k

Mean = 10+5k+56+36 / 16+k

Mean = 102 + 5k / 16+k

6 = 102 + 5k / 16+k

96 + 6k = 102 + 5k

k = 6

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