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Assignment No: 2 (Lessons 10-15)

Question 1:                                                                                                                           Marks: 7

 

For the given cumulative frequency table of students of different age groups, calculate the coefficient of standard deviation and coefficient of variation.

 

Age in years

Cumulative frequency of students (cf)

5-8

3

9-12

15

13-16

24

17-20

51

21-24

57

25-28

60

Question 2:                                                                                                                           Marks: 8

 

From the following data of hours worked in a factory (x) and output units (y), determine the regression line of y on x, the linear correlation coefficient and interpret the result of correlation coefficient.

Hours (X)

91

102

83

93

89

72

82

85

79

Production (Y)

300

302

315

330

300

250

300

340

315

 

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Please Discuss here about this assignment.Thanks

For complete assignment see the attached file please

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amir** always try to add proper discussion & use the proper title.thanks for understanding 

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