Question

find the mean for the following derivation​

Answer 1

Answer:

Step-by-step explanation:

According to the information provided in the question it is given as

Data =x=  4,6,8,10,12,

         f = 12,10,9,8,5

We need to find the mean

Answer 2

$\large\underline{\bf{Solution}}$

$\large\underline{\bf{Given\rightarrow:}}$

$\large\underline{\bf{Some \: observations}}$

$\large\underline{\bf{mean = \frac{sum \: of \: observations}{number \: of \: observations} }}$

$\large\underline{\bf{ \red 1 \rightarrow mean = \frac{4 + 6 + 8 + 10 + 12}{5} }}$

$\large\underline{\bf{ \implies \frac{40}{5} }}$

$\large\underline{\bf{8}}$

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$\large\underline{\bf{ \red 2 \rightarrow \frac{12 + 10 + 9 + 8 + 5}{5} }}$

$\large\underline{\bf{ \implies\frac{44}{5} }}$

$\large\underline{\bf{8.8}}$