CORRECTIONS
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LyanaGomezsQuizHistory_EXAM1RemotelyProctored.pdf
10/19/21, 10:21 PM Lyana Gomez's Quiz History: EXAM 1 (Remotely Proctored)
https://online.smc.edu/courses/46139/quizzes/233907/history?version=1 1/23
EXAM 1 (Remotely Proctored) Results for Lyana Gomez
Score for this quiz: 44 out of 113 Submitted Oct 5 at 8:50pm This attempt took 111 minutes.
4 / 12 ptsQuestion 1
Answer 1:
Answer 2:
Fill in the following table:
Variable Qualitative or Quantitative
Continuous or Discrete
(Write "neither" for when neither apply to the variable)
Nominal,
Ordinal,
Interval, or
Ratio
Letter grade (A, B, C, D, F)
Qualitative Neither Interval
Number of Instagram followers
Qualitative Neither Ordinal
Temperature (in Fahrenheit)
Qualitative Continuous Ratio
Favorite meal Quantitative Discrete Nominal
Qualitative Correct!Correct!
Neither Correct!Correct!
10/19/21, 10:21 PM Lyana Gomez's Quiz History: EXAM 1 (Remotely Proctored)
https://online.smc.edu/courses/46139/quizzes/233907/history?version=1 2/23
Answer 3:
Answer 4:
Answer 5:
Answer 6:
Answer 7:
Answer 8:
Answer 9:
Answer 10:
Ordinal orrect Answerorrect Answer
Interval ou Answeredou Answered
Quantitative orrect Answerorrect Answer
Qualitative ou Answeredou Answered
Neither ou Answeredou Answered
Discrete orrect Answerorrect Answer
Ordinal ou Answeredou Answered
Ratio orrect Answerorrect Answer
Qualitative ou Answeredou Answered
Quantitative orrect Answerorrect Answer
Continuous Correct!Correct!
Interval orrect Answerorrect Answer
Ratio ou Answeredou Answered
10/19/21, 10:21 PM Lyana Gomez's Quiz History: EXAM 1 (Remotely Proctored)
https://online.smc.edu/courses/46139/quizzes/233907/history?version=1 3/23
Answer 11:
Answer 12:
Qualitative orrect Answerorrect Answer
Quantitative ou Answeredou Answered
Neither orrect Answerorrect Answer
Discrete ou Answeredou Answered
Nominal Correct!Correct!
6 / 15 ptsQuestion 2
Identify the type of sampling used (random, cluster, stratified, systematic, convenience) (3 points each)
Santa Monica college wants to survey its students. They assign every student a number and then use a random number generator to randomly select 120 students.
Random Correct!Correct!
A radio station asks its listeners to call in and explain whether or not they support the recent protests in Los Angeles for Breonna Taylor.
Convenience Correct!Correct!
ou Answeredou Answered
10/19/21, 10:21 PM Lyana Gomez's Quiz History: EXAM 1 (Remotely Proctored)
https://online.smc.edu/courses/46139/quizzes/233907/history?version=1 4/23
A researcher divides Los Angeles county by zip code. She then randomly selects 12 zip codes and questions all parents residing within those zip codes on if they would be confident in giving their children any COVID-19 vaccine developed by the end of 2021.
Stratified
Cluster
A researcher divides Los Angeles county by zip code. She then randomly selects from each zip code 100 parents, and ask if they would be confident in giving their children any COVID-19 vaccine developed by the end of 2021.
Convenience ou Answeredou Answered
Stratified
A teacher stands outside the classroom before lecture, and hands every 3rd student an evaluation survey to be completed and returned at the end of class.
Random ou Answeredou Answered
Systematic
10/19/21, 10:21 PM Lyana Gomez's Quiz History: EXAM 1 (Remotely Proctored)
https://online.smc.edu/courses/46139/quizzes/233907/history?version=1 5/23
0 / 6 ptsQuestion 3UnansweredUnanswered
The following table represents data regarding a sample of thermometer temperatures (in Fahrenheit):
Round your answers to three decimal places, where necessary.
Fill in the following table.
Temperature Frequency Midpoints
Relative
Frequency,
round to three decimal places
Cum Freq
57-61 5
61-65
9
65-69
20
69-73
21
73-77
12
77-81 7
10/19/21, 10:21 PM Lyana Gomez's Quiz History: EXAM 1 (Remotely Proctored)
https://online.smc.edu/courses/46139/quizzes/233907/history?version=1 6/23
Answer 1:
Answer 2:
Answer 3:
Answer 4:
(You left this blank)ou Answeredou Answered
59 orrect Answerorrect Answer
59.000 orrect Answerorrect Answer
(You left this blank)ou Answeredou Answered
.068 orrect Answerorrect Answer
0.068 orrect Answerorrect Answer
(You left this blank)ou Answeredou Answered
5 orrect Answerorrect Answer
5.000 orrect Answerorrect Answer
(You left this blank)ou Answeredou Answered
63 orrect Answerorrect Answer
63.000 orrect Answerorrect Answer
.07 orrect Answerorrect Answer
0.07 orrect Answerorrect Answer
.068 orrect Answerorrect Answer
10/19/21, 10:21 PM Lyana Gomez's Quiz History: EXAM 1 (Remotely Proctored)
https://online.smc.edu/courses/46139/quizzes/233907/history?version=1 7/23
Answer 5:
Answer 6:
Answer 7:
Answer 8:
Answer 9:
0.068 orrect Answerorrect Answer
.068 orrect Answerorrect Answer
0.068 orrect Answerorrect Answer
(You left this blank)ou Answeredou Answered
.122 orrect Answerorrect Answer
0.122 orrect Answerorrect Answer
(You left this blank)ou Answeredou Answered
14 orrect Answerorrect Answer
14.000 orrect Answerorrect Answer
(You left this blank)ou Answeredou Answered
67 orrect Answerorrect Answer
67.000 orrect Answerorrect Answer
(You left this blank)ou Answeredou Answered
.27 orrect Answerorrect Answer
0.27 orrect Answerorrect Answer
.270 orrect Answerorrect Answer
0.270 orrect Answerorrect Answer
10/19/21, 10:21 PM Lyana Gomez's Quiz History: EXAM 1 (Remotely Proctored)
https://online.smc.edu/courses/46139/quizzes/233907/history?version=1 8/23
Answer 10:
Answer 11:
Answer 12:
Answer 13:
Answer 14:
(You left this blank)ou Answeredou Answered
34 orrect Answerorrect Answer
34.000 orrect Answerorrect Answer
(You left this blank)ou Answeredou Answered
71 orrect Answerorrect Answer
71.000 orrect Answerorrect Answer
(You left this blank)ou Answeredou Answered
.284 orrect Answerorrect Answer
0.284 orrect Answerorrect Answer
(You left this blank)ou Answeredou Answered
55.000 orrect Answerorrect Answer
55 orrect Answerorrect Answer
(You left this blank)ou Answeredou Answered
75 orrect Answerorrect Answer
75.000 orrect Answerorrect Answer
(You left this blank)ou Answeredou Answered
10/19/21, 10:21 PM Lyana Gomez's Quiz History: EXAM 1 (Remotely Proctored)
https://online.smc.edu/courses/46139/quizzes/233907/history?version=1 9/23
Answer 15:
Answer 16:
Answer 17:
Answer 18:
.162 orrect Answerorrect Answer
0.162 orrect Answerorrect Answer
.162 orrect Answerorrect Answer
0.162 orrect Answerorrect Answer
(You left this blank)ou Answeredou Answered
67 orrect Answerorrect Answer
67.000 orrect Answerorrect Answer
(You left this blank)ou Answeredou Answered
79 orrect Answerorrect Answer
79.000 orrect Answerorrect Answer
(You left this blank)ou Answeredou Answered
.095 orrect Answerorrect Answer
0.095 orrect Answerorrect Answer
(You left this blank)ou Answeredou Answered
74 orrect Answerorrect Answer
74.000 orrect Answerorrect Answer
10/19/21, 10:21 PM Lyana Gomez's Quiz History: EXAM 1 (Remotely Proctored)
https://online.smc.edu/courses/46139/quizzes/233907/history?version=1 10/23
9 / 14 ptsQuestion 4
NOTE: THIS QUESTION USES THE SAME DATA AS THE LAST QUESTION
The following table represents data regarding a sample of thermometer temperatures (in Fahrenheit):
Temperature Frequency
57-61 5
61-65
9
65-69
20
69-73
21
73-77
12
77-81
7
Find the each of the following (include units):
Round your answers to three decimal places, where necessary.
10/19/21, 10:21 PM Lyana Gomez's Quiz History: EXAM 1 (Remotely Proctored)
https://online.smc.edu/courses/46139/quizzes/233907/history?version=1 11/23
Answer 1:
Answer 2:
Answer 3:
Answer 4:
Class Width = 74
Mean = 69.541
Median = 71
Mode = 73
Standard deviation = 5.361
Variance = 28.745
74ou Answeredou Answered
4 degrees orrect Answerorrect Answer
4degrees orrect Answerorrect Answer
69.541ou Answeredou Answered
69.541 degrees orrect Answerorrect Answer
69.541degrees orrect Answerorrect Answer
71ou Answeredou Answered
71 degrees orrect Answerorrect Answer
71degrees orrect Answerorrect Answer
10/19/21, 10:21 PM Lyana Gomez's Quiz History: EXAM 1 (Remotely Proctored)
https://online.smc.edu/courses/46139/quizzes/233907/history?version=1 12/23
Answer 5:
Answer 6:
73ou Answeredou Answered
69-73 degrees orrect Answerorrect Answer
69-73 degrees orrect Answerorrect Answer
71 degrees orrect Answerorrect Answer
71degrees orrect Answerorrect Answer
5.361ou Answeredou Answered
5.361degrees orrect Answerorrect Answer
5.361 degrees orrect Answerorrect Answer
28.745ou Answeredou Answered
28.745 degrees squared orrect Answerorrect Answer
28.745 degrees^2 orrect Answerorrect Answer
28.745 deg squared orrect Answerorrect Answer
28.745 deg^2 orrect Answerorrect Answer
Width incorrect (-2 pts) Mode incorrect (-2 pts) Rest correct but don't forget units! (-1 pt)
0 / 10 ptsQuestion 5UnansweredUnanswered
10/19/21, 10:21 PM Lyana Gomez's Quiz History: EXAM 1 (Remotely Proctored)
https://online.smc.edu/courses/46139/quizzes/233907/history?version=1 13/23
Your Answer:
NOTE: THIS QUESTION USES THE SAME DATA AS THE LAST QUESTION
The following table represents data regarding a sample of thermometer temperatures (in Fahrenheit):
Temperature Frequency
57-61 5
61-65
9
65-69
20
69-73
21
73-77
12
77-81
7
a) Using the value you found in the previous question, interpret the median in a sentence(s). Make sure it is in the context of this situation.
b) Using the value you found in the previous question, interpret the mode in a sentence(s). Make sure it is in the context of this situation.
10/19/21, 10:21 PM Lyana Gomez's Quiz History: EXAM 1 (Remotely Proctored)
https://online.smc.edu/courses/46139/quizzes/233907/history?version=1 14/23
a) Half of all the thermometer temperatures sampled measured at less than or equal to 71 degrees Fahrenheit.
b) The most frequent range of temperatures were between 69 and 73 degrees.
9 / 20 ptsQuestion 6
The following data represent the ages of chief justices of the U.S. Supreme Court when they were appointed (in years). Note that this is a Population, not a Sample of Supreme Court chief justices:
44
56 51 46 59 56
58
55 65 64 68 69
56 62 62 62 50
Round your answers to one decimal place. NO UNITS NECESSARY.
1. Fill in the following table (feel free to use Statcrunch/your calculator)
Mean =
57.6
Minimum =
44
Interquartile Range =
25
Range =
25
Q1 =
53
Lower Fence =
51.5
Mode(s) =
62
Median =
57
Upper Fence =
64.5
Standard deviation = Q3 = Outliers (if there are
10/19/21, 10:21 PM Lyana Gomez's Quiz History: EXAM 1 (Remotely Proctored)
https://online.smc.edu/courses/46139/quizzes/233907/history?version=1 15/23
Answer 1:
Answer 2:
Answer 3:
Answer 4:
Answer 5:
Answer 6:
Answer 7:
7.3 63 none, right "none"):
none
Variance =
53.10
Maximum =
69
57.6ou Answeredou Answered
57.8 orrect Answerorrect Answer
44Correct!Correct!
25ou Answeredou Answered
7 orrect Answerorrect Answer
25Correct!Correct!
53ou Answeredou Answered
55 orrect Answerorrect Answer
51.5ou Answeredou Answered
44.5 orrect Answerorrect Answer
10/19/21, 10:21 PM Lyana Gomez's Quiz History: EXAM 1 (Remotely Proctored)
https://online.smc.edu/courses/46139/quizzes/233907/history?version=1 16/23
Answer 8:
Answer 9:
Answer 10:
Answer 11:
Answer 12:
62ou Answeredou Answered
56, 62 orrect Answerorrect Answer
56 and 62 orrect Answerorrect Answer
56 & 62 orrect Answerorrect Answer
62, 56 orrect Answerorrect Answer
62 and 56 orrect Answerorrect Answer
62 & 56 orrect Answerorrect Answer
62 56 orrect Answerorrect Answer
56 62 orrect Answerorrect Answer
57ou Answeredou Answered
58 orrect Answerorrect Answer
64.5ou Answeredou Answered
72.5 orrect Answerorrect Answer
7.3ou Answeredou Answered
7.0 orrect Answerorrect Answer
63ou Answeredou Answered
62 orrect Answerorrect Answer
10/19/21, 10:21 PM Lyana Gomez's Quiz History: EXAM 1 (Remotely Proctored)
https://online.smc.edu/courses/46139/quizzes/233907/history?version=1 17/23
Answer 13:
Answer 14:
noneou Answeredou Answered
44 orrect Answerorrect Answer
53.10ou Answeredou Answered
48.7 orrect Answerorrect Answer
69Correct!Correct!
Q1, Med, and Q3 incorrect I will assume that is why the mean was incorrect (-3 pts) std dev and variance incorrect (-1 pt) Missing a mode (-1 pt) IQR incorrect (-2 pts) Fences incorrect (-2 pts) There is an outlier (-2 pts)
15 / 15 ptsQuestion 7
Match each of the summary statistics with a histogram. EXPLAIN/JUSTIFY YOUR ANSWERS!!!
Possible answer format: "Summary Statistics I matches with Graph ____ because ______________..."
"Summary Statistics II matches with Graph ____ because ______________..."
"Summary Statistics III matches with Graph ____ because ______________..."
Mean Median Standard Deviation
I 51 51 1.6
II 51 51 24
10/19/21, 10:21 PM Lyana Gomez's Quiz History: EXAM 1 (Remotely Proctored)
https://online.smc.edu/courses/46139/quizzes/233907/history?version=1 18/23
III 61 61 9
Graph A
Graph B
Graph C
10/19/21, 10:21 PM Lyana Gomez's Quiz History: EXAM 1 (Remotely Proctored)
https://online.smc.edu/courses/46139/quizzes/233907/history?version=1 19/23
Your Answer:
Summary statistics 1 matches B because its skewed to the left
Summary Statistics 2 matches A
Summary statistics 3 matches D
10/19/21, 10:21 PM Lyana Gomez's Quiz History: EXAM 1 (Remotely Proctored)
https://online.smc.edu/courses/46139/quizzes/233907/history?version=1 20/23
Summary Statistics I has a mean/median of 51, so it would match with either Graph A or C. Of the two, Graph A has the lower standard deviation, so it matches.
Therefore, Summary Statistics II (which also have mean/median of 51) by process of elimination would match with Graph C.
Summary Stats III would match with Graph B, since that histogram is the only one centered at 61.
So I goes with graph A.
II goes with graph C.
III goes with graph B.
Error in the graphs (teacher's fault), full credit for all :(
0 / 7 ptsQuestion 8
Solar energy is considered by many to be the energy of the future. A recent survey was taken to compare the cost of solar energy to the cost of gas or electric energy. Results of the sample survey revealed that the distribution of the amount of the monthly utility bill of a 3-bedroom house using gas or electric energy had a mean of $114 and a standard deviation of $23.
10/19/21, 10:21 PM Lyana Gomez's Quiz History: EXAM 1 (Remotely Proctored)
https://online.smc.edu/courses/46139/quizzes/233907/history?version=1 21/23
Answer 1:
Answer 2:
a) If the distribution can be considered bell shaped, what percentage of 3- bedroom homes will have a monthly utility bill between $68 and $160?
30%
b) If the distribution can be considered bell shaped, the highest 0.15% of
utility bills are at or above what price? (include units)
30%ou Answeredou Answered
95 orrect Answerorrect Answer
95% orrect Answerorrect Answer
95 percent orrect Answerorrect Answer
(You left this blank)ou Answeredou Answered
$183 orrect Answerorrect Answer
183 dollars orrect Answerorrect Answer
1 / 14 ptsQuestion 9
The following is a boxplot of exam 3 scores for a previous College Algebra class.
10/19/21, 10:21 PM Lyana Gomez's Quiz History: EXAM 1 (Remotely Proctored)
https://online.smc.edu/courses/46139/quizzes/233907/history?version=1 22/23
Your Answer:
a) Are there any outliers? If so, list them. (2 points)
b) What is the median of exam scores? (2 points)
c) What would the shape of the data be (Left-skewed/right- skewed/symmetric)? Justify/explain your answer. (3 points)
d) 75% of students scored below approximately what value? (2 points)
e) 75% of students scored above approximately what value? (2 points)
f) Would you predict the mean is greater than, less than, or approximately equal to the median? Explain (3 points)
a. no b. 90 c. right skewed d. 60 e. 85 f. greater than
10/19/21, 10:21 PM Lyana Gomez's Quiz History: EXAM 1 (Remotely Proctored)
https://online.smc.edu/courses/46139/quizzes/233907/history?version=1 23/23
a) Yes, 22.
b) Approximately 84
c) Left skewed, since you have an outlier on the left side of your data.
d) 88 points
e) Approximately 72 points.
f) I predict the mean is less than the median, since the data is left- skewed.
incorrect
Quiz Score: 44 out of 113
