Question

The mean deviation about the mean for 3, 8, 4, 10, 6, 2

a) 2 b) 25 c) 3 d) 35​

Answer 1

Answer:

(c)

Step-by-step explanation:

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Answer 2

Correct question-

The mean deviation about the mean for 3, 8, 4, 10, 6, 2

a) 2 b) 2.5 c) 3 d) 35​

Answer-

The mean deviation from the mean is b) 2.5

Step-by-step explanation:

Given:

Data is given as 3,8,4,10,6,2

To find:

mean deviation

Solution:

First, we take out the mean of the data by using the formula

mean =sum of observations/number of observations

= 3+8+4+10+6+2

            6

= 33/6

mean = 5.5

Now, we subtract each value of the data from the mean, exclude the negative signs

= 3- 5.5 = 2.5

=8- 5.5 = 2.5

=4- 5.5 = 1.5

= 10- 5.5 = 4.5

= 6- 5.5 = 0.5

= 2- 5.5 = 3.5

Now we take this data set (2.5, 2.5, 1.5, 4.5, 0.5, 3.5) and find the mean for it

Mean = 2.5+2.5+1.5+4.5+0.5+3.5

                             6

        = 15/6

        = 2.5

Hence, the mean deviation of the set will be 2.5