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Answer :
A frequency distribution with 7 classes was constructed for the given data, showing the percentage of people who completed 4 or more years of college in each interval.
To construct a frequency distribution with 7 classes for the given data representing the percentage of people who completed 4 or more years of college, we first need to determine the range of the data and then divide it into appropriate intervals.
The range of the data is the difference between the maximum and minimum values:
Range = Maximum value - Minimum value = 37.9 - 18.9 = 19
Next, we divide the range by the number of desired classes, which is 7:
Class width = Range / Number of classes = 19 / 7 ≈ 2.71
We round up the class width to ensure that all data points fall within the intervals. Therefore, let's use a class width of 3.
Now, we start with the minimum value (18.9) and create intervals of width 3:
Interval 1: 18.9 - 21.9
Interval 2: 22.0 - 25.9
Interval 3: 26.0 - 29.9
Interval 4: 30.0 - 33.9
Interval 5: 34.0 - 37.9
Counting the frequencies within each interval, we obtain:
Interval 1: 5
Interval 2: 15
Interval 3: 14
Interval 4: 7
Interval 5: 6
Now we have our frequency distribution:
Interval Frequency
18.9 - 21.9 5
22.0 - 25.9 15
26.0 - 29.9 14
30.0 - 33.9 7
34.0 - 37.9 6
The question probable may be:
Percentage of People Who Completed 4 or More Years of College Listed by state are the percentages of the population who have completed 4 or more years of a college education. Construct a frequency distribution with 7 classes.
21.4 26.0 25.3 19.3 29.5 35.0 34.7 26.1 25.8 23.4 27.1 29.2 24.5 29.5 22.1 24.3 28.8 20.0 20.4 26.7 35.2 37.9 24.7 31.0 33.9 24.8 31.7 25.6 23.5 25.0 21.8 18.9 25.7 24.5 24.1 22.8 28.3 25.8 27.0 27.5 21.8 32.5 29.8 25.2 28.7 33.6
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