Question

If the mean of 20, 18, 13, 12, k and 10
is 15 find the value of k​

Answer 1

Answer:

20+18+13+12+k+10/6=15

63+k=90

k=90-63=27

Answer 2

Step-by-step explanation:

Mean = Sum of observation/ Number of observation

15 = 20 + 18 + 13 + 12 + k + 10/6

→15 = 73 + k/6

→90 = 73 / k

→-k = 73 -90

→ -k = -17

→ k = 17

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