The mean deviation about the mean for the following data is
Class Interval
$0 - 4$
$4 - 8$
$8 - 12$
$12 - 16$
Frequency
4
3
2
1

Question

The mean deviation about the mean for the following data is Class Interval 0-4 4-8 8-12 12-16 Frequency 4 3 2 1

Accepted Answer

Correct answer: C. (c) Cl f_i x_i f_i^i (x_i-x) f_i (x_i x ) 0-4 4 2 8 4 16 4-8 3 6 18 0 0 8-12 2 10 20 4 8 12-16 1 14 14 8 8 Total f_i=10 f_ix_i=60 f_i(x_i-x) =32 Now, x= f_ix_i f_i= 6010=6 ∴ Mean Deviation = f_i(x_i-x) f_i= 3210=3.2

$The mean deviation about the mean for the following data is Class Interval 0 - 4 4 - 8 8 - 12 12 - 16 Frequency 4321$

Solution

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