Question

find the mean of 2,3,7,9​

Answer 1

Step-by-step explanation:

sum of all observation/total no. of observation

2+3+7+9/4=

Answer 2

Answer:

Mean of $2, 3, 7 , 9$  is $5.25$ .

Step-by-step explanation:

To find : mean of $2, 3, 7 , 9$

Given data : $2, 3, 7 , 9$  

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 $= 21$
• Total number of observations $= 4$
• Substituting values in above formula,

        $\begin{array}{r}\text { Average }=\frac{21}{4} \\=5.25\end{array}$