Question

The mean of the observation x - 1, x, and x + 1 is​

Answer 1

Answer:

x

Step-by-step explanation:

adding all three observations

x+1+x+x-1

-1+1 is 0

remaining is 3x now divide 3x with number of observations i.e. 3

so 3x/3 is x.

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Answer 2

Answer:

The correct answer will be -

x will be the mean of the following observation.

Step-by-step explanation:

Given the observations are x - 1, x, and x + 1.

We have to find the mean.

We know that mean is the sum of observations divided by the number of observations -

Total number of observations = 3

Mean = $\frac{x-1+x+x+1}{3} = \frac{3x}{3} = x$

So x will be the mean of the following observation.

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