Business StatisticsTU Board 2080
a) The coefficient of rank correlation of marks obtained by 10 students in Statistics and Account was found to be 0.5. It was later discovered that the difference in ranks in the two subjects…
10a) The coefficient of rank correlation of marks obtained by 10 students in Statistics and Account was found to be 0.5. It was later discovered that the difference in ranks in the two subjects obtained by one student was wrongly taken as 3 instead of 7. Find the correct coefficient of rank correlation. b) From analysis of the monthly wages paid to workers in the firm A and B belonging to the same industry given the following results.Firm AFirm BNo. Of workers500600Average monthly wage (Rs.)480475Variance of distribution of wage (Rs.)400625a. Which firm pays larger wage bill? b. In which firm is there greater variability in individual wages?
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