What was the approximate lowest and highest grade in the class?
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A. 4 and 28
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B. 40 and 100
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C. 65 and 85
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D. 40 and 99.9
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E. 45 and 95
Answer Key:
D
Feedback:
Lowest value is 40 and the highest value in the Class Limit is 99.9
Question 7 of 20
Sixty-five randomly selected car salespersons were asked the number of cars they generally sell in one week. Fourteen
people answered that they generally sell three cars; nineteen generally sell four cars; twelve generally sell five cars; nine generally sell
six cars; eleven generally sell seven cars. Complete the table.
Data Value (# cars)FrequencyRelative Frequency PercentCumulative Relative Frequency
3
14
21.5%
4
19
29.2%
5
12
18.46%
6
9
13.8%
7
11
16.9%
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APUS CLE : MATH302 B005 Win 20 : Tests & Quizzes
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What does the Frequency column in the table sum to?
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A. 19.8
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B. 25
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C. 14
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D. 65
Answer Key:
D
Feedback:
14 + 19 + 12 + 9 + 11
Part 4 of 8 - Measures of Central Tendency Knowledge Check Homework Practice
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Question 8 of 20
Cholesterol levels were collected from patients two days after they had a heart attack (Ryan, Joiner & Ryan, Jr, 1985).
Find the mean. Round to 4 decimal places.
See Attached Excel for Data.
cholesterol data.xlsx
8 KB
•
A. 248.3245
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B. 253.9286
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C. 235.2593
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D. 236
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E. 268
Answer Key:
B
Feedback:
use =AVERAGE function in Excel
Question 9 of 20
sleep hours data.xlsx
8 KB
The following data show the average time (in hours) that a random sample of 8 students sleep per night.
Page 5 of 13
APUS CLE : MATH302 B005 Win 20 : Tests & Quizzes
1/17/2020
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See Attached Excel for Data.
The median time students sleep per night is
6.55 hours. Do not Round.
Answer Key:
6.55
Feedback:
use =MEDIAN function in Excel.
Question 10 of 20
The following data are the distances between 20 retail stores and a large distribution center. The distances are in miles.
Which of the following is the mode?
See Attached Excel for Data.
distance miles data.xlsx
8 KB
•
A. 84
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B. 34.5
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C. 96
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D. 86
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E. 89
Answer Key:
C
Feedback:
The mode is the value that appears the most, which is 96.
Question 11 of 20
Cholesterol levels were collected from patients two days after they had a heart attack (Ryan, Joiner & Ryan,
Jr, 1985). Find the median.
See Attached Excel for Data
cholesterol data.xlsx
8 KB
•
A. 248.3245
•
B. 236
•
C. 235.2953
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D. 253.9286
•
E. 268
Page 6 of 13
APUS CLE : MATH302 B005 Win 20 : Tests & Quizzes
1/17/2020
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1.0/ 1.0 Points
1.0/ 1.0 Points