Question

Find the mean of the following frequency distribution, using assumed-mean method: Class 0 - 10 10 - 20 20 - 30 30 - 40 40 – 50 Frequency 7 12 13 10 8

Answer 1

Answer:

27.2

Step-by-step explanation:

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Mean of Grouped Data

Find the mean of the follow...

STATISTICS

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Asked on December 20, 2019 by

Prajwal Sonkar

Find the mean of the following data, by using the assumed mean method.

Class Interval

0−10

10−20

20−30

30−40

40−50

Frequency

7

8

12

13

10

EASY

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ANSWER

Answer:-

Class interval Frequency (f

i

) x

i

=

2

lower limit + upper limit

f

i

x

i

0−10 7 5 35

10−20 8 15 120

20−30 12 25 300

30−40 13 35 455

40−50 10 45 450

Σf

i

=50 Σf

i

x

i

=1360

Mean =

Σf

i

Σf

i

x

i

=

50

1360

=27.2