The percentage of marks of 50 students in a test is given in the following table. Find the mean of the percentage.
Percentage of
marks. 0-20
20-40
40-60
60-80
80-100
No. of. 3.
students 7.
15
20
5
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Answered by
8
Answer:
sigma fixi =2840
sigma fi =50
mean =2840/5=568
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Answered by
7
therefore, the mean of the percentage of maraksis 56.8
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