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Mean Deviation about Median for Discrete Frequency Distributions

Deviation = C...

Question

Deviation = Class mark - assumed mean

A

False

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B

True

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Solution

The correct option is B True

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Similar questions

Q. The marks scored by 5 students in a class are 25, 30, 35, 40 and 45. Find the standard deviation using Assumed mean method.

For finding mean by assumed mean method

$¯ ¯ ¯ x$ = a + $\frac{(\sum f \times d)}{\sum f}$

Where d and a are respectively

d_{i}

is the deviation of a class mark

y_{i}

from ‘a’ the assumed mean and

f_{i}

is the frequency, if

M_{g} = x + \frac{1}{\sum f_{i}} (\sum f_{i} d_{i})

Q. The weights of five girls in a class are 45 kg, 55 kg, 42 kg, 50 kg and 56 kg. Find the mean deviation about mean using the assumed mean method.

Q. [dummy - to replace with video] The weights of five girls in a class are 45 kg, 55 kg, 42 kg, 50 kg and 56 kg. Find the mean deviation about mean using the assumed mean method.

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Mean Deviation about Median for Discrete Frequency Distributions

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