Homework SourseThe manager of a nightclub near a local university recorded
The manager of a nightclub near a local university recorded the ages of the last 100 guests in the following cumulative frequency distribution.
Construct the corresponding frequency, relative frequency, and cumulative relative frequency distributions. (Round \"relative frequency\" and \"cumulative relative frequency\" to 2 decimal places.)
How many of the guests were at least 26 but less than 30 years old?
What percent of the guests were at least 22 but less than 26 years old?
What percent of the guests were younger than 34 years old?
What percent were 34 years or older?
| Ages | Cumulative Frequency |
| 18 up to 22 | 66 |
| 22 up to 26 | 73 |
| 26 up to 30 | 85 |
| 30 up to 34 | 97 |
| 34 up to 38 | 100 |
Solution
a)
b-1.
From the table, it is 12. [ANSWER]
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b-2.
From the table, it is 7%. [ANSWER]
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b-3.
From the table, it is 97%. [ANSWER]
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B-4.
From the the table, it is 3%. [ANSWER]
| Ages | Frequency | Relative | Cumulative |
| Frequency | Relative | ||
| Frequency | |||
| 18 up to 22 | 66 | 0.66 | 0.66 |
| 22 up to 26 | 7 | 0.07 | 0.73 |
| 26 up to 30 | 12 | 0.12 | 0.85 |
| 30 up to 34 | 12 | 0.12 | 0.97 |
| 34 up to 38 | 3 | 0.03 | 1 |
| Total | 100 | 1 |
