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Flag question: Question 1
Question 1
2 pts
Quiz scores of statistics students were obtained by a teacher and listed below. Construct a frequency distribution beginning with a lower class limit of 0 and use a class width of 2. What is the upper class boundary of the fifth class?
10, 3, 8, 4, 5, 6, 7, 2, 4, 7
Flag question: Question 2
Question 2
2 pts
The data represents the body mass index (BMI) values for 20 females. Construct a frequency distribution beginning with a lower class limit of 15.0 and use a class width of 6.0. What is the upper class limit of the fifth class?
49.7, 34.1, 16.9, 20.2, 18.7, 34.9, 44.2, 29.3, 54.3, 29.1, 22.3, 51.7, 23.4, 47, 41, 22.3, 26.9, 20.2, 27.8, 44.9
Flag question: Question 3
Question 3
2 pts
The frequency table below shows the number of days off in a given year for police detectives. Construct a histogram. What is the lower class boundary of the fifth class?
Days Off / Frequency
0-2 / 5
3-5 / 6
6-8 / 8
9-11 / 2
12-14 / 1
15-17 / 9
Flag question: Question 4
Question 4
2 pts
The data represents the body mass index (BMI) values for 20 females. Construct a frequency distribution beginning with a lower class limit of 15.0 and use a class width of 6.0. What frequency is listed for the third class?
18.9, 23.2, 27, 36.4, 43.7, 50, 54.5, 37.6, 31.9, 44.5, 52.5, 19.1, 42.1, 37.3, 18.5, 28.8, 47.3, 39.1, 28.5, 26.4
Flag question: Question 5
Question 5
2 pts
A frequency table of grades has five classes (A, B, C, D, F) with frequencies of 11, 16, 11, 3, and 9 respectively. Using percentages, what are the relative frequencies of the A class? (Express the answer as a percentage rounded to the nearest hundredth.)

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