Question

A student noted the number of cars passing through a spot on a road for 100 periods each of 3 minutes and summarised it in the table given below.
class interval
0 - 10
10-20
20-30
30-40
40-50
50-60
60-70
70-80
frequency
7
14
13
12
20
11
15
which class interval has the highest frequency
what is the class size
lower limit of highest class frequency is
what is the total no. of cars between the range f 50-80

Answer 1

Answer:

40 - 50 has the highest frequency

the class size is 10

46 is the total no of cars btwn d range of 50-80