find mean of the following class intervals 0-10 10-20 20-30 30-40 40-50 frequency 5 10 12 8 5
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Class 11
>>Economics
>>Measures of Central Tendency
>>Arithmetic Mean in Statistics
>>Calculate the mean of the following dist
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Calculate the mean of the following distribution:
Class Interval 0−10 10−20 20−30 30−40 40−50 50−60
Frequency 8 5 12 35 24 16
Medium
Solution
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Correct option is A)
Class Mid value (x) f fx
0-10 5 8 40
10-20 15 5 75
20-30 25 12 300
30-40 35 35 1225
40-50 45 24 1080
50-60 55 16 880
Total
100 3600
Mean(
x
ˉ
)=
∑f
∑fx
=
100
3600
=36.