Question

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The mean of 1,3,5, 7, 9, 11, 13 is

Answer 1

Step-by-step explanation:

❥ Mean = $\frac{ Sum \: of \: observations }{ Total \: number \: of observations }$

❥ Mean = $\frac{ 1~+~3~+~5~+~7~+~9~+~11~+~13 }{ 7 }$

❥ Mean = $\frac{ 49 }{ 7 }$

❥ $\huge\fbox\pink{ 7 }$

$\huge{\fcolorbox{red}{yellow}{ ~✔~DIVYA~✔~}}$

Answer 2

Solution:-

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$\large\to{\underbrace{\underline{\sf{Understanding\:the\:concept:-}}}}$

$\to$ Here, we are given the data in the question that is 1, 3, 5, 7, 9, 11, 13. Now the question has asked us to find the mean.

✮ HOW TO DO

• To find the mean first of all we need to do the sum of all observations. Then after we have to count the number of observations and divide the sum of observations by the number of observations. The quotient which we will get after dividing the sum of observations by the number of observations will be the mean of the given data.

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ANSWER:-

☯ The mean is 7.

GIVEN:-

⟶ Data = 1, 3, 5, 7, 9, 11, 13

TO FIND:-

⇾ Here we have to find out the mean of the given ddata

SOLVING STEP BY STEP:-

• Follow the steps below to get the answer:↴

1. Do the sum of all observations.
2. Count the number of observations.
3. Divide the sum of observations by the number of observations.
4. The quotient will be the answer.

We know that:-

$\begin {gathered}\pink {\bigstar} \: \underline {\boxed{\frak {\purple{Mean = \dfrac{Sum \: of \: all\: observations}{Number \: of \: observations}}}}} \end{gathered}$

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$\dashrightarrow \tt{Mean = \dfrac{(1 + 3 + 5 + 7 + 9 + 11 + 13)} {7}}$

$\dashrightarrow \tt{Sum \: of \: observations = 49}$

$\dashrightarrow \tt{N \: (No. \: of \: observations) = 7}$

$\dashrightarrow \tt{Mean = \dfrac{49}{7}}$

$\dashrightarrow \tt{Mean = \dfrac{ \not4 \!\!\!\not9}{ \not7}}$

$\dashrightarrow \tt{Mean = \dfrac{ \not4 \!\!\!\not9}{ \not7} = 7}$

$\begin {gathered}\pink {\odot} \: \overline {\boxed{\frak {\purple{Mean = 7}}}} \end{gathered}$

Hence, we got the answer.

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