Question

on dividing the sum of observation by total number of observation we observe the dash​

Answer 1

AnswEr:-

❀ Your Answer Is mean (average of the observations).

↦On dividing the sum of observations by total number of observations we observe the mean of observations.

For example:-

• We have 5 numbers = 1, 2, 3, 4, and 5.

So here sum of observations,

$\tt = 1 + 2 + 3 + 4 + 5. \\ \\ \tt = 3 + 7 + 5. \\ \\ \tt = 15.$

And number of observations = 5.

So,

$\\ \rm\dfrac{sum \: \: of \: \: obervations}{number \: \: of \: \:the \: \: observations} . \\ \\ \tt = \cancel \frac{15}{5} . \\ \\ \tt =3. ..(1)$

Also mean of these observations is 3...(2)

So from (1) and (2) we get:-

$\\ \rm \mapsto\dfrac{sum \: \: of \: \: obervations}{number \: \: of \: \:the \: \: observations} = Mean \: \: of \: \: the \: \: observations.$

$\rule{200}2$

Additional Information:-

• Mean:- A number expressing central value of the data or we can say the central number of the data is called the mean/average of that data.

• Means are important because they summarise the large amount of data in a single value.

$\rule{200}2$

Answer 2

Answer:

The answer is mean.

Step-by-step explanation: