Question

The number of hours a group of contestants spent preparing for a quiz show are listed below. What is a frequency table that represents the data?

60 25 86 56 45 48 90 75 30 67 90 36 80 15 32 65 61C

Answer 1

60 25 86 56 45 48 90 75 30 67 90 36 80 15 32 65 61

Hours Frequency
0 - 9 0
10-19 15 1
20-29 25 1
30-39 30, 36, 32 3
40-49 45, 48 2
50-59 56 1
60-69 60, 67, 65, 61 4
70-79 75 1
80-89 86, 80 2
90-99 90, 90 2

Answer 2

Explanation:

Given in the number of hours a group of contestants spent preparing for a quiz

The list shows as follows:

60 25 86 56 45 48 90 75 30 67 90 36 80 15 32 65 61

In ascending order this becomes

x 15 25 30 32 36 45 48 56 60 61 65 67 75 80 86 90

F 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2

Thus we have mode =90

All other entries have frequency 1 except 90