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Find the mean of the following frequency...

Find the mean of the following frequency distribution: Classes:               0-20         20-40                            40-60       60-80                            80-100 Frequency:          15            18                            21            29                            17

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Find the mean of the following frequency distributions: Class interval: 0-10 10-20 20-30 30-40 40-50 Frequency: 9 12 15 10 14

Find the mean of the following frequency distributions: Class interval: 0-10 10-20 20-30 30-40 40-50 Frequency: 9 12 15 10 14

Find the mean of the following frequency distribution: Class-interval: 0-10 10-20 20-30 30-40 40-50 No. of workers f: 7 10 15 8 10

Find the mean of the following frequency distribution: Class-interval: 0-10 10-20 20-30 30-40 40-50 No. of workers f: 7 10 15 8 10

Find the mode from the following frequency distribution: Class 0-10 10-20 20-30 30-40 40-50 50-60 60-70 Frequency 8 10 10 16 12 6 7

The mean of the following frequency distribution is 50. Find the value of pdot Classes 0-20 20-40 40-60 60-80 80-100 Frequency 17 28 32 p 19

Find the mean of the following frequency distribution using step-deviation method. Class 0-10 10-20 20-30 30-40 40-50 Frequency 7 10 15 8 10

Find the mean of the following frequency distribution, using step-deviation method: Class 0-10 10-20 20-30 30-40 40-50 Frequency 7 12 13 10 8

Find the mean of the following frequency distribution : {:("Class ",0-20,20-40,40-60,60-80,80-100),("Frequency "," "15," "18," "21," "29," "17):}

The mean of the following distribution is 18. Find the frequency f of the class 19-21 .