Question

Find mean , median , mode of the following data marks 30-39 40-49 50-59 60-69 70-79 80-89 90-99 No of students 14 6 10 20 30 8 12

Answer 1

Answer:

Your answer is here.

Mean.

mean is equal to

sum of value/number of value. = 30 + 40 + 39 + 49 + 50 + 59 + 60 + 69 + 70 + 79 + 80+89 +90 + 99 +14 + 6 + 10 + 20 + 30 + 8 + 12.

______________________________________

21

=1003/21

=47.76

Median.

30 + 40 + 39 + 49 + 50 + 59 + 60 + 69 + 70 + 79 + 80+89 +90 + 99 +14 + 6 + 10 + 20 + 30 + 8 + 12.

arrange this value in ascending order.

do yourself.

and choose middle number.

Mode

There is no mode.

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Answer 2

Answer:

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