Question

the sum of 10 observations is 210.find the mean​

Answer 1

Mean = Sum of the observations/numbers of the observations.

= 210/10

= 21 Answer

Answer 2

Answer:

Mean of 10 observations is $21$ .

Step-by-step explanation:

To find: mean .  

Given : sum of 10 observations is 210

Solution :

• Average is the arithmetic mean also called as mean .  
• It is the ratio of sum of all the numbers given in data to the total number of observations.
• Formula :  $Average \ or \ mean =\frac{\text { sum of all the observations }}{\text { total of observations }}$
• Here, sum of observations $= 210$
• Total number of observations $= 10$
• Substituting values in above formula,

       $\begin{array}{r}\text { Average \ or mean }=\frac{210}{10} \\\\=21\end{array}$