Question

how to find the answer

Answer 1

Dear friend,

To find the arithmetic mean of a data,

Let x be different numbers of values upto n, then its mean is :

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

Mean:

(∑x) ÷ n

∑ is the summation
x is the variable
n is the count of numbers

Hope it helps !!!

Answer 2

do all in this way
if u get doubts ask me