calculate mean, median,and mode from the following data? class 10-30 30-50 50-70 70-90 frequency 2 10 5 3
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Answer:
Class Frequency(f) x f(x)
10-30 2 20 2×20=40
30-50 10 40 10×40=400
50-70 5 60 5×60×300
70-90 3 80 3×80=240
Total €f=20 €f(x)=980
Mean=€f(x)/€f
=980/20
=49
Arrange in ascending order
2,3,5,10
Median=(n+1)/2
=(4+1)/2
=5/2
=2.5
Median=3 (or) 5
Mode=No mode (Because there is no repeated values)
Mean symbol is not correct
I think this is your answer
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