Question

Let x, y, z be three observations. The mean of these observations is ______.

विकल्प

• `(x xx y xx z)/3`

• `(x + y + z)/3`

• `(x - y - z)/3`

• `(x xx y + z)/3`

Answer 1

Let x, y, z be three observations. The mean of these observations is `underlinebb((x + y + z)/3)`.

Explanation:

Here, x, y and z be three observations.

We know that,

Mean = `"Sum of observations"/"Number of observations"`

= `(x + y + z)/3`