The number of hours a group of contestants spends preparing for a quiz show are listed below. What is the frequency table that represents that data?
8 12 25 32 45 50 62 73 80 99 4 18 9 39 36 67 33
A. time chartZero to 9 hours has a frequency of 3. Ten to 19 hours has a frequency of 2. Twenty to 29 hours has a frequency of 1. Thirty to 39 hours has a frequency of 4. Forty to 49 hours has a frequency of 1. Fifty to 59 hours has a frequency of 1. Sixty to 69 hours has a frequency of 2. Seventy to 79 hours has a frequency of 1. Eighty to 89 hours has a frequency of 1. Ninety to 99 hours has a frequency of 1.
B. time chartZero to 9 hours has a frequency of 2. Ten to 19 hours has a frequency of 3. Twenty to 29 hours has a frequency of 1. Thirty to 39 hours has a frequency of 3. Forty to 49 hours has a frequency of 2. Fifty to 59 hours has a frequency of 1. Sixty to 69 hours has a frequency of 2. Seventy to 79 hours has a frequency of 1. Eighty to 89 hours has a frequency of 1. Ninety to 99 hours has a frequency of 1.
C. time chartZero to 9 hours has a frequency of 4. Ten to 19 hours has a frequency of 1. Twenty to 29 hours has a frequency of zero. Thirty to 39 hours has a frequency of 4. Forty to 49 hours has a frequency of 2. Fifty to 59 hours has a frequency of 1. Sixty to 69 hours has a frequency of 2. Seventy to 79 hours has a frequency of 1. Eighty to 89 hours has a frequency of 1. Ninety to 99 hours has a frequency of 1.
D. time chartZero to 9 hours has a frequency of 3. Ten to 19 hours has a frequency of 2. Twenty to 29 hours has a frequency of 1. Thirty to 39 hours has a frequency of 4. Forty to 49 hours has a frequency of 1. Fifty to 59 hours has a frequency of 1. Sixty to 69 hours has a frequency of 2. Seventy to 79 hours has a frequency of 1. Eighty to 89 hours has a frequency of 1. Ninety to 99 hours has a frequency of 2.
20 / 32
The correct answer is D.
To create a frequency table, we first need to determine the range of the data. The smallest value is 4 and the largest value is 99, so the range is 95. We can then divide the range by the desired number of intervals or classes. In this case, let's choose 10 intervals of width 10.
The intervals would be:
0-9, 10-19, 20-29, 30-39, 40-49, 50-59, 60-69, 70-79, 80-89, 90-99
We can then count how many values fall into each interval and create the frequency table:
Interval | Frequency
0-9 | 3
10-19 | 2
20-29 | 1
30-39 | 4
40-49 | 1
50-59 | 1
60-69 | 2
70-79 | 1
80-89 | 1
90-99 | 2
Therefore, the correct answer is D.
The correct answer is option D. The frequency table that represents the given data is as follows:
Zero to 9 hours: Frequency of 3
Ten to 19 hours: Frequency of 2
Twenty to 29 hours: Frequency of 1
Thirty to 39 hours: Frequency of 4
Forty to 49 hours: Frequency of 1
Fifty to 59 hours: Frequency of 1
Sixty to 69 hours: Frequency of 2
Seventy to 79 hours: Frequency of 1
Eighty to 89 hours: Frequency of 1
Ninety to 99 hours: Frequency of 2