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plot the histogram, frequency polygon and cumulative frequency polygon and compute the sample mean, sample variance...

plot the histogram, frequency polygon and cumulative frequency polygon and compute the sample mean, sample variance and sample standard deviation

for the data . frequency

2.50 - 3.50 4

3.50 - 4.50 7

4.50 - 5.50 . 8

5.50 - 6.50 4

6.50 - 7.50   2

Math   Statistics-And-Probability   
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