Question

In: Statistics and Probability

In order to study the quality of parts, a batch of 100 parts was checked at...

In order to study the quality of parts, a batch of 100 parts was checked at the enterprise. The results are presented in the following table:

Groups of parts by weight, g

40-50

50-60

60-70

70-80

80-90

90-100

100-110

110-120

Total

Number of parts

2

4

11

19

21

25

10

8

100

Determine the mean, variance, mode, median, 1st and 3rd quartiles, coefficient of variation, plot a histogram, find asymmetry and kurtosis. Calculated indicators indicate in the figure.

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