Question

Construct the cumulative frequency distribution that corresponds to the given frequency distribution. Number Speed of cas 0-29 30-59 16 60-89 60 90-119 20

Answer 1

Solution :

Given that

speed number of cars  

0 - 29 4

30 - 59 16

60 - 89 60

90 - 119 20

=> The cumulative frequncy distribution table is :-

Speed cumulative frequncy

less than 30 4 (+4)

less than 60 20 (4 + 16)

less than 90 80 (4 + 16 + 60)

less than 120 100 (4 + 16 + 60 + 20)