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# STA301 Assignment No 2 Solution & Discussion Due Date: 25-04-2012

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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### Replies to This Discussion

For complete assignment see the attached file please

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Aslam.o.alikum.

i make a solution of question no 1

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

i has been made complete assignment

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