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Summary MATH 1280 Review Quiz
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This document is the complete review in preparation for the Final Exam
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6/11/24, 1:24 PM Review Quiz: Attempt review | HomeStarted on Thursday, 6 June 2024, 5:46 AM
State Finished
Completed on Thursday, 6 June 2024, 5:49 AM
Time taken 3 mins 44 secs
Marks 20.00/20.00
Grade 100.00 out of 100.00
Question 1
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Mark 1.00 out of 1.00
A study finds that the mean amount spent in a grocery store per visit by customers in a sample is $12.84. This is an example of a:
a. Population
b. Sample
c. Parameter
d. Statistic
e. Variable
The correct answer is: Statistic
Question 2
Correct
Mark 1.00 out of 1.00
The U.S. federal government conducts a survey of high school seniors concerning their plans for future education and employment.
One question asks whether they are planning to attend a four-year college or university in the following year. Fifty percent answer yes
to this question. What is that 50 percent?
a. Parameter
b. Statistic
c. Variable
d. Data
The correct answer is: Statistic
https://my.uopeople.edu/mod/quiz/review.php?attempt=14498369&cmid=416796 1/9
, 6/11/24, 1:24 PM Review Quiz: Attempt review | Home
Question 3
Correct
Mark 1.00 out of 1.00
The time to wait for a particular rural bus is distributed uniformly from zero to 75 minutes. One hundred riders are randomly sampled
to learn how long they waited. Would you be surprised, based on numerical calculations, if the sample average wait time (in minutes)
for 100 riders was less than 30 minutes?
a. yes
b. no
c. There is not enough information.
The correct answer is: yes
Question 4
Correct
Mark 1.00 out of 1.00
One hundred eighteen students were asked what type of color their bedrooms were painted: light colors, dark colors, or vibrant colors.
The results were tabulated according to gender.
Find the probability that a randomly chosen student is male given the student’s bedroom is painted with dark colors.
a. 30/118
b. 30/48
c. 22/118
d. 30/52
Your answer is correct.
The correct answer is:
30/52
https://my.uopeople.edu/mod/quiz/review.php?attempt=14498369&cmid=416796 2/9
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