Question: A frequency distribution is shown below. Class interval 1-10 11-20 21-30 31-40 41-50 Frequency (f) 10 20 30 24 16 a Work out the value

A frequency distribution is shown below. Class interval 1-10 11-20 21-30 31-40 41-50 Frequency

(f) 10 20 30 24 16 a Work out the value of the 30th percentile. b Work out the value of the 70th percentile. e Calculate the 30% to 70% interpercentile range.

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