Math, asked by amit8685800759, 11 months ago

the mean deviation of the data 3, 10, 10 ,4 ,7 ,10 ,5 from the mean is​

Answers

Answered by JeanaShupp
2

Answer: The mean deviation of the data from mean is 2.57

Step-by-step explanation:

The given data is 3, 10, 10, 4, 7, 10, 5

Now the mean of the given data

\overline{x}= \dfrac{\sum x_i}{n} = \dfrac{3+10+10+4+7+10+5}{7} =\dfrac{49}{7} =7

Now

x_i                                              |(x_i- \overline{x})|

3                                               (3-7) =      4

10                                             (10-7) =      3

10                                             (10-7) =      3

4                                               (4-7) =      3

7                                               (7-7) =       0

10                                              (10-7) =     3

5                                                (5-7) =     2

Now mean deviation about mean is given by

M.D.(\overline{x} )= \dfrac{\sum |(x_i-\overline{x} )|}{n} = \dfrac{4+3+3+3+0+3+2}{7} =\dfrac{18}{7}= 2.57

Hence, the mean deviation of the data from mean is 2.57

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