Mean of 5 consecutive even number is 16.Find the variance of the number.
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Answer:
Assume the biggest number is x, then the next number would be x + 1…
Therefore,
(x + (x-1) + (x-2) + (x-3) + (x-4))/5 = 16 (The parenthesis are to see the numbers clearly)
Therefore, we can multiply 16 and 5 to attain the answer.
x + x-1 + x-2 + x-3 + x-4 = 80
5x - 10 = 80
FACTOR:) 5(x-2) = 80
x-2 = 16
x = 18.
Step-by-step explanation:
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