Question

what is mean? give formula for n observations​

Answer 1

Explanation:

the expected value or average, is called mean

formula for n observations :

x1 + x2 + x3 + x4 + ..... + xn / n

where n is the number if observations..!

Answer 2

ANSWER

MEAN OR AVERAGE is the midvalue of a particular numbers or series.

the formula of average = sum of all observations/total number of observations

Explanation:

for example

2,3,6,8,8,6,2

mean= [2+3+6+8+8+6+2] / 7 =35/7=5

If you are a high schooler then use the formula

sigma n/n

sigma means summation and n is the series of numbers which you have.

this one is just the complicated way of saying the first equation which i gave you. all these equations mean the same will produce the same yeild.

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