Given below are the marks obtained by 20 students in a mathematics test out of 100:…
MATHEMATICS · Multi-part · CBSE · Mathematics · Tales by Dots and Lines · ICSE
Problem
Given below are the marks obtained by 20 students in a mathematics test out of 100:
77, 83, 90, 62, 58, 74, 69, 85, 91, 73, 68, 76, 81, 88, 72, 94, 67, 79, 86, 80
(i) Rewrite the data in ascending order.
(ii) Determine the range of the marks.
(iii) If the pass mark is 35, comment briefly (in two or three lines) on whether the range alone can tell us how many students failed. Justify your answer.