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The Marks of 24 Candidates in the Subject Mathematics Are Given Below: the Maximum Marks Are 50. Make a Frequency Distribution Taking Class Intervals 0 - 10, 10-20, ....... - Mathematics

Sum

The marks of 24 candidates in the subject mathematics are given below:

45 48 15 23 30 35 40 11
29 0 3 12 48 50 18 30
15 30 11 42 23 2 3 44

The maximum marks are 50. Make a frequency distribution taking class intervals 0 - 10, 10-20, .......

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Solution

The frequency table for the given distribution is

Marks Tally Marks Frequency
0 - 10 |||| 4
10 - 20 6
20 - 30 ||| 3
30 - 40 |||| 4
40 - 50 7

In this frequency distribution, the marks 30 are in the class of interval 30 - 40 and not in 20 - 30. Similarly, marks 40 are in the class of interval 40 - 50 and not in 30 - 40.

Concept: Frequency Distribution Table
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APPEARS IN

Selina Concise Mathematics Class 9 ICSE
Chapter 18 Statistics
Exercise 18 (A) | Q 3 | Page 227
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