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Davis, Armstrong, and McCraith, PreStatistics e/1 (Homework)

James Finch

Statistics, section 2, Fall 2019

Instructor: Dr. Friendly

Current Score : 3 / 9

Due : Sunday, January 27, 2030 23:30 EST

Last Saved : n/a Saving...  ()

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Question
Points
1 2 3 4 5
1/1 2/2 –/4 –/1 –/1
Total
3/9 (33.3%)

  • Instructions

    Prestatistics by Donald Davis, Bill Armstrong, and Mike McCraith, published by Cengage Learning prepares students for statistics with a three-step problem-solving process that shows them how to identify the method needed to solve a given problem, use mathematics to find a numerical result and interpret that result. Authors Davis, Armstrong and McCraith highlight why each section's concepts are useful to learn and engage students with many real-data applications. The WebAssign component for this title includes lecture videos and links to a complete eBook.

    Question 1 demonstrates grading for ordered lists.

    Question 2 shows content which encourages students to classify data types early in the course.

    Question 3 is a multipart question which includes grading for an exact numerical answer in part a and grading for a rounded numerical answer in part b.

    Question 4 features multiple choice grading in a pull-down format.

    Question 5 contains grading for an exact decimal answer.

Assignment Submission

For this assignment, you submit answers by question parts. The number of submissions remaining for each question part only changes if you submit or change the answer.

Assignment Scoring

Your last submission is used for your score.

1. 1/1 points  |  Previous Answers DavisPreStat1 1.2.054. My Notes
Question Part
Points
Submissions Used
1
1/1
2/100
Total
1/1
 
Rewrite the group of numbers ordered from least to greatest. (Enter your answers as a comma-separated list.)
1, −7, −2, −4, 5, 7
−7,−4,−2,1,5,7
Correct: Your answer is correct.

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2. 2/2 points  |  Previous Answers DavisPreStat1 1.2.067. My Notes
Question Part
Points
Submissions Used
1 2
1/1 1/1
2/100 1/100
Total
2/2
 
For the scenario given, determine the smallest set of numbers for its possible values and classify the values as either discrete or continuous.
the fuel efficiency, in miles per gallon, for a fleet of rental cars
Choose the smallest set of numbers to represent the possible values.
     Correct: Your answer is correct.
Are the values continuous or discrete?
     Correct: Your answer is correct.

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3. –/4 points DavisPreStat1 1.5.023. My Notes
Question Part
Points
Submissions Used
1 2 3 4
–/1 –/1 –/1 –/1
0/100 0/100 0/100 0/100
Total
–/4
 
Clarice goes to a local home improvement store to purchase new carpet and to have the new carpet installed in a room. Clarice says the room is approximately 400 square feet. Installers arrive and, after taking measurements, determine that the room is 383 square feet.
(a)
Compute the absolute error. (Simplify your answer completely.)
AE =
Interpret the result.
    
(b)
Compute the relative error. Round to three decimal places. (Simplify your answer completely.)
RE =
Interpret the result.
    
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4. –/1 points DavisPreStat1 1.7.038. My Notes
Question Part
Points
Submissions Used
1
–/1
0/100
Total
–/1
 
Use this table to rewrite
4.8E9
 using the hierarchy of large numbers.
4.8 
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5. –/1 points DavisPreStat1 3.1.017. My Notes
Question Part
Points
Submissions Used
1
–/1
0/100
Total
–/1
 
Solve the linear equation for the variable s.
195.472 = 154.9 + 1.96s
s =

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