UPSKILL MATH PLUS
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Learn moreThe following is the frequency distribution of duration for \(100\) calls made on a mobile phone.
| Duration \(in seconds\) | \(95-125\) | \(125-55\) | \(155-185\) | \(185-215\) | \(215-245\) |
| Number of calls | \(14\) | \(22\) | \(28\) | \(21\) | \(15\) |
Calculate the average duration (in sec) of a call and also find the median from the cumulative frequency curve.
Answer:
The mean \(=\) \(sec\).
The median \(=\) \(sec\).
[Note: Enter the answer in two decimal number.]
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