Math, asked by srishtikaur2007, 9 months ago

Construct a grouped frequency table with class intervals 0 – 5, 5 – 10 and so on for the following Marks obtained in maths (out of 50) by a group of students in an examination:
0, 5, 6, 7, 10, 12, 14, 15, 20, 22, 25, 26, 27, 8, 11, 17, 3, 6, 9, 17, 19, 21, 22, 29, 31, 35, 37, 40, 42, 45, 49, 4,50, 16, and 20
і) What is the range of the data?
іі) which group contains the maximum number of students
ііі) Determine the class size
іv) Construct a cumulative frequency table ? what is meaning of cumulative

Answers

Answered by vanshika30703
11

Construction of grouped frequency table:

Class        Frequency   Cumulative frequency

0 - 5               3                         3

5 - 10              6                        9

10 - 15             4                        13

15 - 20            5                        18

20 - 25            5                        23

25 - 30            4                         27

30 - 35             1                         28

35 - 40             2                        30

40 - 45             2                        32

45 - 50             2                        34

50 - 55              1                        35

(i)  Range of the data = Highest value - lowest value

                                  = 50 - 0

                                  = 50

(ii) The groups which contain highest frequency are 15 - 20 and 20 - 25.

(ii) The class size is 5.

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