The frequency distribution shows tha marks of 100 students in a Mathematics test. Marks 1-10 11-20 21-30 31-40 41-50 51-60 61-70 71-80 81-90 91-100 No. of S...

Question 1 Report

The frequency distribution shows tha marks of 100 students in a Mathematics test.

Marks 1-10 11-20 21-30 31-40 41-50 51-60 61-70 71-80 81-90 91-100

No. of

Students

2 4 9 13 18 32 13 5 3 1

(a) Draw cumulative frequency curve for the distribution .

(b) Use your curve to estimate : (i) the median ; (ii) the lower quartile ; (iii) the 60th percentile.