Rohan who works in a customer care call centre keeps a record of the number of minutes each telephone call lasts. The record of the calls is:
10, 25, 31, 31, 19, 13, 26, 26, 19, 10, 13, 20, 26, 19, 26, 19, 26, 30, 28, 26.

Dear student,Time(xi)Frequency(fi)10213219420125126628130131210,10,13,13,19,19,19,19,20,25,26,26,26,26,26,26,28,30,31(c) Mean=i=1i=20 xifii=1i=20fi= 20+26+76+20+25+156+28+30+6220=22.15 minsMode=26 minsMedian=10th term+11th term2=25+262=25.5 minsFor remaining queries we request you to post them in separate threads to have rapid assistance from our experts.Regards

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