Question

Find the mean of the data: 2, 5, 7, 11,10,12, 9​

Answer 1

Answer:

The mean of the given data of 2, 5, 7, 11, 10, 12, 9 is 8.

Step-by-step explanation:

Given a set (  2, 5, 7, 11, 10, 12, 9 )

Now we know that the sum of the data divided by the total amount of data is the mean of a set of numbers, which is also known as the average.

So, there is a total of 7 numbers in the set, according to the definition of mean we first add them all and divide it by 7.

i.e, 2+5+7+11+10+12+9 = 56

Now, 56 ÷ 7 = 8

So the mean of this number set is 8.

Answer 2

Answer:

We will get the mean of  2,5,7,11,10,12,9=8.

Step-by-step explanation:

• As per the question we have to evaluate the given data.

           Given data:- 2,5,7,11,10,12,9.

           To find:- Value of mean.

           Solution:-

• We know that mean is an arithmetic average of all numbers.

• it is the sum of all numbers divided by the total number of observations.
• The formula of the mean is

         $mean =\frac{\text { Sum of all number }}{\text { Total number of observation }}$

         Therefore we will get,

          $\begin{array}{l}\text { mean }=\frac{2+5+7+11+10+12+9}{7} \\\text { mean }=\frac{56}{7} \\\text { mean }=8 \end{array}$