COMM-215-2201-AA Week 2: May 11 – May 17 Quiz 1 (Covers Chapters 1, 2 and 3) -
May 12, 2026 at 16:00 until May 13 at 16:00
Started on Tuesday, 12 May 2026, 6:25 PM
State Finished
Completed on Tuesday, 12 May 2026, 7:04 PM
Time taken 39 mins 29 secs
Grade 18.00 out of 20.00 (90%)
Question 1 A local electronics retailer recently conducted a study on purchasers of large screen
Correct televisions. The study recorded the type of television and the credit account balance of
the customer at the time of purchase. They obtained the following results.
Mark 1.00 out of
1.00
What percentage of purchases were plasma televisions by customers with the smallest
credit balances?
Select one:
A. 19.50
34.80
50.00
19.60 40 of 204 total purchases; 40/204 = 19.6%
39.20
The correct answer is: 19.60
, Question 2 A histogram that tails out toward larger values is .
Correct
Select one:
Mark 1.00 out of
1.00 A. skewed to the right Larger values are to the right of the center part of the
graph, resulting in a tail to the right. Thus, the graph is skewed to the right.
a scatter plot
None of the answers are correct
normal
skewed to the left
The correct answer is: skewed to the right
Question 3
The department of Quality Assurance takes to hear the issues at WAK company, a light
Incorrect bulb manufacturer. To test the life-hours of their light bulbs, they randomly sampled ten
Mark 0.00 out of
light bulbs and measured how many hours they lasted.
1.00
378, 361, 350, 375, 200, 391, 375, 368, 321, 312.
What is the range?
Select one:
191
58.5
10,609
3424.3
None of the answers are correct
The correct answer is: 191
May 12, 2026 at 16:00 until May 13 at 16:00
Started on Tuesday, 12 May 2026, 6:25 PM
State Finished
Completed on Tuesday, 12 May 2026, 7:04 PM
Time taken 39 mins 29 secs
Grade 18.00 out of 20.00 (90%)
Question 1 A local electronics retailer recently conducted a study on purchasers of large screen
Correct televisions. The study recorded the type of television and the credit account balance of
the customer at the time of purchase. They obtained the following results.
Mark 1.00 out of
1.00
What percentage of purchases were plasma televisions by customers with the smallest
credit balances?
Select one:
A. 19.50
34.80
50.00
19.60 40 of 204 total purchases; 40/204 = 19.6%
39.20
The correct answer is: 19.60
, Question 2 A histogram that tails out toward larger values is .
Correct
Select one:
Mark 1.00 out of
1.00 A. skewed to the right Larger values are to the right of the center part of the
graph, resulting in a tail to the right. Thus, the graph is skewed to the right.
a scatter plot
None of the answers are correct
normal
skewed to the left
The correct answer is: skewed to the right
Question 3
The department of Quality Assurance takes to hear the issues at WAK company, a light
Incorrect bulb manufacturer. To test the life-hours of their light bulbs, they randomly sampled ten
Mark 0.00 out of
light bulbs and measured how many hours they lasted.
1.00
378, 361, 350, 375, 200, 391, 375, 368, 321, 312.
What is the range?
Select one:
191
58.5
10,609
3424.3
None of the answers are correct
The correct answer is: 191
