Question

find the mean of observation 59,75,68,70,74,75,80​

Answer 1

$\large\underline{ \underline{ \sf \: Solution :</p><p> \: \: \: }}$

Given ,

$\star$Sum of all observation = 501

$\star$Number of observation = 7

We know that ,

$\large \fbox{ \fbox{ \sf \: Mean = \frac{Sum \: of \: all \: observation }{ \: \: Total \: number \: of \: observation \: \: } </p><p> \: }}$

$\implies \sf Mean = \frac{501}{7} \\ \\ \ \implies \sf Mean = 71.571428571$

Hence , 71.571428571 is the required value of mean

Answer 2

Step-by-step explanation:

mean =59+75+68+70+74+75+80/7

mean =71.57