The manager of a nightclub near a local university recorded the ages of the last
ID: 3021647 • Letter: T
Question
The manager of a nightclub near a local university recorded the ages of the last 100 guests in the following cumulative frequency distribution.
a. Construct the corresponding frequency, relative frequency, and cumulative relative frequency distributions. (Round "relative frequency" and "cumulative relative frequency" to 2 decimal places.)
b-1.How many of the guests were at least 26 but less than 30 years old?
Number of guests______?
b-2.What percent of the guests were at least 22 but less than 26 years old?
Percent of guests_____?
b-3.What percent of the guests were younger than 34 years old?
Percent of guests_____?
b-4.What percent were 34 years or older?
Percent of guests_____?
Ages Cumulative Frequency 18 up to 22 69 22 up to 26 71 26 up to 30 83 30 up to 34 90 34 up to 38 100Explanation / Answer
a)
b-1.
According to the frequency column,
ANSWER: 12
*********
b-2.
According to the relative frequency column,
ANSWER: 2%
*********
b-3.
According to the cumulative relative frequency column,
ANSWER: 90%
***********
b-4.
According to the relative frequency column, those 34 to 38 years old are
ANSWER: 10%
Ages Frequency Relative Frequency Cumulative Relative Frequency 18 up to 22 69 0.69 0.69 22 up to 26 2 0.02 0.71 26 up to 30 12 0.12 0.83 30 up to 34 7 0.07 0.9 34 up to 38 10 0.1 1 Total 100 1 xRelated Questions
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