Question

if the mean of 1, 2, 3, X is zero then find x​

Answer 1

Answer:

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Step-by-step explanation:

mean = sum of all observations / total number of observations

0 = 1+2+3+X / 4

0 = 6 + X

X = -6

Answer 2

Answer:

If the mean of 1, 2, 3, X is 0, then the value of x will be -6.

Step-by-step explanation:

What is mean value?

The mean value of a specific number of numbers/data is actually the ratio of the summation of all the data variables to the total number of variable entries.

It can be written in mathematical form as:

$Mean = \frac{x_{1} + x_{2} + x_{3} + ....+ x_{n} }{n}$

where x₁, x₂, x₃, and, xₙ are the data variables, and, n is the number of data entries/variables.

Calculation:

Here, according to the question,

$\frac{1 + 2+ 3 + x}{4} = 0$

⇒ 1 + 2 + 3 + x = 0

⇒ 6 + x = 0

⇒ x = -6

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