MATH 120 Final Exam |MATH 120 Introduction to Statistics latest Week 8
Final Exam Questions and Answers 2024/2025
Question 1 point
Collin records the number of text messages he receives each day, and he
records
5, 5, 6, 7, 8, 8, 9, 10, 12, 14, 16, 18.
What is the frequency for the number of days in which he receives
between 10 and 14 (inclusive) text messages?
2
3
4
5
Question 2 point
A class took an exam. Their scores are listed below. If the student who
scored 72 actually scored an 92 but it was entered incorrectly how would
this change the median and the mode?
Student
Scores 58 72 72 82 90 91 92 93
The mode will increase but the median will stay the same.
Both the median and the mode will increase.
Neither the median or the mode will change.
, The median will increase but the mode will stay the same.
Question 3 point
A class took an exam. Their scores are listed below. If the student who
scored 48 actually scored an 72 but it was entered incorrectly how would
this change the mean and the variance?
Student
48 58 72 82 85 91 92 97
Scores
Both the mean and the variance would increase.
The mean would increase but the variance would decrease.
Both the mean and the variance would decrease.
The variance would increase but the mean would decrease.
Question 4 point
, Given the above box plots, we can conclude that the 75th percentile for
Sports Cars is more than the max price for Pick-up Trucks.
True
False
Question 5 point
A animal shelter has 5 girl cats, 7 girl dogs, 9 boy cats, and 2 girl dogs. If
comes into the shelter and asks for two randomly selected pets, what is the
probability that they will get 2 girl dogs (i.e. a girl dog is selected, and then
another girl dog is selected without replacement)
Final Exam Questions and Answers 2024/2025
Question 1 point
Collin records the number of text messages he receives each day, and he
records
5, 5, 6, 7, 8, 8, 9, 10, 12, 14, 16, 18.
What is the frequency for the number of days in which he receives
between 10 and 14 (inclusive) text messages?
2
3
4
5
Question 2 point
A class took an exam. Their scores are listed below. If the student who
scored 72 actually scored an 92 but it was entered incorrectly how would
this change the median and the mode?
Student
Scores 58 72 72 82 90 91 92 93
The mode will increase but the median will stay the same.
Both the median and the mode will increase.
Neither the median or the mode will change.
, The median will increase but the mode will stay the same.
Question 3 point
A class took an exam. Their scores are listed below. If the student who
scored 48 actually scored an 72 but it was entered incorrectly how would
this change the mean and the variance?
Student
48 58 72 82 85 91 92 97
Scores
Both the mean and the variance would increase.
The mean would increase but the variance would decrease.
Both the mean and the variance would decrease.
The variance would increase but the mean would decrease.
Question 4 point
, Given the above box plots, we can conclude that the 75th percentile for
Sports Cars is more than the max price for Pick-up Trucks.
True
False
Question 5 point
A animal shelter has 5 girl cats, 7 girl dogs, 9 boy cats, and 2 girl dogs. If
comes into the shelter and asks for two randomly selected pets, what is the
probability that they will get 2 girl dogs (i.e. a girl dog is selected, and then
another girl dog is selected without replacement)
