Question

Q 10: Construct a more than cumulative frequency distribution table:
C.I 50-60 60 – 70 70-80 80-90
F
13 15 17 21
90 - 100
23
100 - 110
19​

Answer 1

Answer:

C.F                     c.i

13                      50-60

13+15=28          60-70

28+17=45         70-80

45+21=66         80-90

66+23=89         90-100

89+19=108         100-110

Step-by-step explanation:

we will write first F as it is. than we plus new F with old one

Answer 2

A more than cumulative frequency distribution table

Step-by-step explanation:

The total frequency of all classes less than the upper class boundary of a given class is called the cumulative frequency of that class.

More than cumulative frequency distribution: It is obtained by finding the cumulative total of frequencies starting from the highest to the lowest class.

here ,

class interval      frequency       morethan interval     cumulative frequency

50-60                    13                        more than 50                    108

60-70                    15                         more than 60                    95

70-80                    17                            more than 70                  80

80-90                    21                            more than 80                  59

90-100                   23                            more than 90                 36

100-110                  19                               more than 100              17

#Learn more :

Calculate the mean of the following distribution use the step deviation method. C.I 50-60 60-70 70-80 80-90 90-100 100-110 110-120. f 8 12 13 15 10 11 6.

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