Question

find the mean of 3,6,9,12,15​

Answer 1

Step-by-step explanation:

Mean= sum of all observation

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Total observation

Mean= 3+6+9+12+15

-------------------

5

Mean= 45/5

Mean= 9

Therefore, the mean is 9

correct explanation

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Answer 2

Answer:

The mean of the given data will be 9.

Step-by-step explanation:

Given data is$3,6,9,12,15$.

We have to find the mean of the above data.

• As we know that, the mean of a data set is the sum of the terms divided by the total number of terms.
• The formula is used to calculate the mean is:

        $\text { Mean }=\frac{\text { Sum of terms }}{\text { Number of terms }}$

We are solving in the following way:

We have,

$3,6,9,12,15$

Here,

$\text { Sum of terms }=3+6+9+12+15=45\\\text { Number of terms }=5$

So, the mean of the above data will be:

$\begin{aligned}\text { Mean } &=\frac{\text { Sum of terms }}{\text { Number of terms }} \\\text { Mean } &=\frac{45}{5} \\\text { Mean } &=9\end{aligned}$