Question

the data represent the time, in minutes, spent reading a political blog in a day. construct a frequency distribution using 5 classes. complete the table, include the midpoints, relative frequencies, and cumulative frequencies. which class has the greatest frequency and which has the least frequency?
class frequency midpoint relative frequency cumulative frequency
0 - 9 5 4.5 0.25 5
10 - 19 2 14.5 0.1 7
20 - 29 0 24.5 0 7
30 - 39 6 34.5 0.3 13
40 - 49 7 44.5 0.35 20
the class with the greatest frequency is from 40 to 49
which class has the least frequency?
the class with the least frequency is from 20 to 29

Explanation:

Step1: Identify greatest and least frequency

From the frequency - column of the table (5, 2, 0, 6, 7), we can see that the greatest frequency is 7 (for the class 40 - 49) and the least frequency is 0 (for the class 20 - 29).

Answer:

The class with the greatest frequency is 40 - 49. The class with the least frequency is 20 - 29.