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CBSE Class 9 Answered

Given below are the marks obtained by 50 students of class IX in a test of Hindi. 42, 21, 51, 37, 42, 37, 38, 42, 49, 52, 38, 53, 57, 47, 29, 59, 61, 33, 17, 71, 39, 43, 42, 39, 14, 7, 27, 19, 54, 51, 39, 43, 42, 16, 37, 67, 62, 39, 51, 53, 41, 53, 59, 37, 27, 33, 34, 42, 22, 31. With these data, form a less than type cumulative frequency table.(i) What is the range of marks. (ii) What can you conclude from the above data about the number of students who scored more than 35.
Asked by Topperlearning User | 18 Aug, 2017, 11:08: AM
answered-by-expert Expert Answer

(i) Range of marks

(ii) From cumulative frequency, we find that 14 students scored less than 35.

Thus, 50 - 14 = 36 students i.e. 72% students scored more than 35 marks.

Answered by | 18 Aug, 2017, 01:08: PM

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