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it is the arithmetic average computed from the table​

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Answer:

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Class 11

>>Economics

>>Measures of Central Tendency

>>Arithmetic Mean in Statistics

>>From the following table compute arithme

Question

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From the following table compute arithmetic mean by direct method.

Marks 0−10 10−20 20−30 30−40 40−50 50−60

No. of students 5 10 25 30 20 10

Medium

Solution

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Marks Midpoint (x) No. of students (f) fx

0−10

10−20

20−30

30−40

40−50

50−60 5

15

25

35

45

55 5

10

25

30

20

10 25

150

625

1050

900

550

∑f=100 ∑f(x)=3300

x

=

∑f

∑f(x)

=

100

3300

=33

∴ Mean =33

Step-by-step explanation:

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