STRAIGHTERLINE (MAT 202) STATISTICS FINAL EXAM
QUESTIONS WITH ALL CORRECT ANSWERS . GRADED A+
Anais is organizing her rock collection and places each rock in one of three categories: small, medium,
or large. This illustrates what level of measurement? Select one: a. nominal
b. ordinal Correct
c. interval
d. ratioQuestion 2
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Which of the following is an example of a nominal variable?
Select one:
a. age Incorrect
b. gender
c. height
d. IQ
Question 3
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What sort of data are temperature measurements?
Select one: a. interval
b. nominal Incorrect
c. ordinal
d. ratioQuestion 4
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Based on the graph, which statement best describes the relationship between daily high temperatures
and the number of people going to the beach?
Text
Select one:
a. There is no relationship.
b. It is a positive linear relationship. Incorrect
c. It is a negative linear relationship.
,d. It is a curvilinear relationship.
Question 5
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The table shows the number of train tickets Carl purchased to each station over the last month and the
fare to each station. What was the average cost per ride?
Select one: a.
$3.60
b. $4.15
c. $5.45 Correct
d. $5.80Question 6
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The outcomes observed in an experiment are: 2, 8, 3, 10, 4, and 9. What is the sample
variance? Select one: a. 4.1
b. 7.6 Incorrect
c. 9.3
d. 11.6Question 7
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Jason collects information about annual family income from each student at his college. He computes
both the mean and median family income across all students and is surprised to find that the mean
income is much higher than the median income. What is the most likely reason for the difference in the
mean and the median?
Select one:
a. The sample size is too small.
b. The median tends to produce lower estimates of central tendency.
c. The median is not an appropriate estimate for annual family income’s level of measurement.
Incorrect
d. The mean is more affected by a small number of extreme values.
Question 8
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An instructor administers a test to a class of 30 students and observes that the scores are close to
normally distributed with a mean score of 40 and a standard deviation of 10. What can you conclude
from these results?
Select one:
a. Approximately 2/3 of the class scored between 30 and 50 on the test.
b. The lowest score on the test was 30 and the highest score was 50.
c. Students found the test to be difficult. Incorrect
d. The average student scored at the 40th percentile.
Question 9
Correct
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Laura's quiz scores during the semester were 87, 82, 90, 92, and 84. What was her mean score?
Select one: a. 79
b. 84
c. 86
d. 87 CorrectQuestion 10
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The table lists the populations and relative frequencies of car ownership in four neighboring cities.
Which city has the most cars?
Select one:
a. Northland
b. Southland Incorrect
c. Eastville
d. Westville
Question 11
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In the figure shown, Sample A and Sample B have the same
Text
QUESTIONS WITH ALL CORRECT ANSWERS . GRADED A+
Anais is organizing her rock collection and places each rock in one of three categories: small, medium,
or large. This illustrates what level of measurement? Select one: a. nominal
b. ordinal Correct
c. interval
d. ratioQuestion 2
Incorrect
0.00 points out of 8.33
Not flaggedFlag question
Question text
Which of the following is an example of a nominal variable?
Select one:
a. age Incorrect
b. gender
c. height
d. IQ
Question 3
Incorrect
0.00 points out of 8.33
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Question text
What sort of data are temperature measurements?
Select one: a. interval
b. nominal Incorrect
c. ordinal
d. ratioQuestion 4
Incorrect
0.00 points out of 8.33
Not flaggedFlag question
Question text
Based on the graph, which statement best describes the relationship between daily high temperatures
and the number of people going to the beach?
Text
Select one:
a. There is no relationship.
b. It is a positive linear relationship. Incorrect
c. It is a negative linear relationship.
,d. It is a curvilinear relationship.
Question 5
Correct
8.33 points out of 8.33
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Question text
The table shows the number of train tickets Carl purchased to each station over the last month and the
fare to each station. What was the average cost per ride?
Select one: a.
$3.60
b. $4.15
c. $5.45 Correct
d. $5.80Question 6
Incorrect
0.00 points out of 8.33
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Question text
The outcomes observed in an experiment are: 2, 8, 3, 10, 4, and 9. What is the sample
variance? Select one: a. 4.1
b. 7.6 Incorrect
c. 9.3
d. 11.6Question 7
Incorrect
0.00 points out of 8.33
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Question text
Jason collects information about annual family income from each student at his college. He computes
both the mean and median family income across all students and is surprised to find that the mean
income is much higher than the median income. What is the most likely reason for the difference in the
mean and the median?
Select one:
a. The sample size is too small.
b. The median tends to produce lower estimates of central tendency.
c. The median is not an appropriate estimate for annual family income’s level of measurement.
Incorrect
d. The mean is more affected by a small number of extreme values.
Question 8
Incorrect
0.00 points out of 8.33
, Not flaggedFlag question
Question text
An instructor administers a test to a class of 30 students and observes that the scores are close to
normally distributed with a mean score of 40 and a standard deviation of 10. What can you conclude
from these results?
Select one:
a. Approximately 2/3 of the class scored between 30 and 50 on the test.
b. The lowest score on the test was 30 and the highest score was 50.
c. Students found the test to be difficult. Incorrect
d. The average student scored at the 40th percentile.
Question 9
Correct
8.33 points out of 8.33
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Question text
Laura's quiz scores during the semester were 87, 82, 90, 92, and 84. What was her mean score?
Select one: a. 79
b. 84
c. 86
d. 87 CorrectQuestion 10
Incorrect
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Question text
The table lists the populations and relative frequencies of car ownership in four neighboring cities.
Which city has the most cars?
Select one:
a. Northland
b. Southland Incorrect
c. Eastville
d. Westville
Question 11
Incorrect
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Question text
In the figure shown, Sample A and Sample B have the same
Text
