1. The following is the frequency distribution table of the marks scored by candidates in an...

1. The following is the frequency distribution table of the marks scored by candidates in an examination.
Marks 0-9 10-19 20-29 30-39 40-49 50-59 60-69 70-79 80-89 90-99
frequency 2 7 8 13 24 30 6 5 3 2

A. Make a cumulative frequency table and use it to draw the cumulative frequency curve for the distribution
B. Use your graph to estimate
I. The median mark
II. The lower quartile
III. The upper quartile
IV. The inter quartile range
V. The pass mark if the 60 percent of students passed
VI. The 40th percentile
VII. The 20th percentile
C. Calculate the following
I. Mode
II. Median
III. Standard deviation
IV. Co efficient of variation
V. Skewness

Expert Solution

orchestra answered 2 years ago

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