Question

the mean of the data:4,10,5,9and12​

Answer 1

Step-by-step explanation:

$\huge\bf\underline\green{solution}$

$\huge\sf\underline\red{to find}$

mean of 4,10,5,9,12

$\huge\fcolorbox{black}{red}{formula}$

mean = sum of the given numbers÷number of numbers

$\huge\fcolorbox{black}{pink}{solution:}$

.: number of numbers = 5

.: sum of numbers = 4+10+5+9+12

= 29+21

= 50

.: sum of the numbers = 50.

mean = 50/5= 10

.: mean of 4,10,5,9,12 = 10.

$\huge\fcolorbox{black}{green}{:// hence solved...}$

Answer 2

$\huge\underbrace\pink{Solution:-}$

Given that 4,10,5,9,12 numbers

We have to find mean of the numbers

$\huge\underbrace\pink{Formula}$=$\frac{Sum\: of\:observations}{No\:of\:observations}$

Sum of obseravtions= 4+5+9+10+12=40

No.of observations are 5

Mean= $\frac{40}{5}$=8

$\huge\underbrace\pink{Conclusion}$Therefore mean of given data is 8

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$\huge\bf\underline\pink{Hence\:Solved}$