clemimah clemimah

14-09-2020
Mathematics

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Calculate x if the mean of 30, x, 12, 40, and 10 is equal to x.

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AbhiAju AbhiAju

14-09-2020

Answer:

23

Step-by-step explanation:

Let the mean also is x

Mean = Sum of all observations / Total no of observations

x = 30 + 12 + 40 + 10 + x / 5

5x = 92 + x

4x = 92

x = 23

Therefore 23 is the mean and also one of the numbers.

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