Problem 5: Following is the distribution of marks out of 50 maximum marks in a class of 40 students Groups No of of mark

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Problem 5 Following Is The Distribution Of Marks Out Of 50 Maximum Marks In A Class Of 40 Students Groups No Of Of Mark 1 (96.82 KiB) Viewed 5 times

Problem 5: Following is the distribution of marks out of 50 maximum marks in a class of 40 students Groups No of of marks 0-10 10- 20 20- 30 30- 40 40- 50 Total student (f) 3 7 8 12 10 40 i. How many students have got marks less than 80%? ii. How many students have got marks More than 60%? iii. How many students have got marks less than 40? iv. How many students have got marks more than 20? v. Find median marks and discuss the class performance. vi. Find 3rd quartile of marks and discuss the class performance. vii. Find 90th percentile of marks and discuss the class performance. viii. Calculate SD ix. Calculate Variance x. Calculate MSD about 30.