Question

the first moment of the distribution about the value 4 is 8 Arithmetic mean of the distribution is

Answer 1

Answer:

12

Step-by-step explanation:

basic definition knowledge required

Answer 2

Answer:

The Arithmetic mean of the distribution is 12.

Step-by-step explanation:

ц₁ = First moment

∑₁ⁿ$\frac{x_1}{n}$ = Mean

ц₁ =∑$\frac{x_1-4}{n}$ = 8

∑$\frac{x_1-4}{n}$ = ∑₁ⁿ$\frac{x_1}{n}$ - ∑₁ⁿ$\frac{4}{n}$

       8  =  ∑₁ⁿ$\frac{x_1}{n}$ - $\frac{4n}{n}$

       8  =  ∑₁ⁿ$\frac{x_1}{n}$ - 4

12 = ∑₁ⁿ$\frac{x_1}{n}$