Question

The following table shows the classification of number of vehicles and their speeds on Mumbai-Pune express way. Find the median of the data.
Average Speed of No. of vehicles
Vehicles(Km / hr)
60-64 : 10
64-69 : 34
70-74 : 55
75-79 : 85
79-84 :10
84-89 : 6

Answer 1

Answer:

75.04

Step-by-step explanation:

Average Speed    Frequncy     Cumulative Frequency

60 - 64                  10                  10

64 - 69                  34                  44

70 - 74                  55                 99

75 - 79                  85                  184

79 - 84                  10                  194

84 - 89                  6                   200

Median lies in 75-79

Estimated Median = 75  + 4 * ( (200/2) - 99)/ 85

= 75 + 4 /85

= 75.04

Answer 2

Step-by-step explanation:

this is the correct answer