Find the mean of the following frequency...

Find the mean of the following frequency distributions: `Class i nterval: 10-30 30-50 50-70 70-90 90-110 110-130` `Frequency: 5 8 12 20 3 2`

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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 i n terval: 0-8 8-16 16-24 24-32 32-40 Frequency: 5 9 10 8 8

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 distributions: Class interval: 0-6 6-12 12-18 18-24 24-30 Frequency: 6 8 10 9 7

Find the mean of the following frequency distributions: Class interval: 0-6 6-12 12-18 18-24 24-30 Frequency: 7 5 10 12 6

Find the mean of the following frequency distributions: Class: 50-70 70-90 90-110 110-130 130-150 150-170 interval Frequency: 18 12 13 27 8 22

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

Write the median class for the following frequency distribution: Class-interval: 0-10 10-20 20-30 30-40 40-50 50-60 60-70 70-80 Frequency: 5 8 7 12 28 20 10 10

Find the mode of the following distribution: (i) Class-interval: 0-10 10-20 20-30 30-40 40-50 50-60 60-70 70-80 Frequency: 5 8 7 12 28 20 10 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

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