STQM Exam 2025 Questions and
Answers
1. what is the average mpg for all new cars? Using consumer reports, a random sample
variable of 35 new cars gave an average of 21.1 mpg.
Identify the variable
A. new cars
B. total miles
C. mpg
D. none of the above
2. is the variable quantitative or qualitative?
3. the individuals in this study are ______________
A. mileage for all cars
,B. total miles for all cars
C. all new cars
D. gasoline mileage for 35 new cars - ANSWER✔✔-1. C. mpg
2. quantitative
3. C. all new cars
which of the following is at ordinal level of measurement?
A. species of fish caught
B. cost of rod and reel
C. rating of fishing (poor, good, fair)
D. temperature of water in fahrenheit - ANSWER✔✔-C. rating of fishing (poor, good,
fair)
suppose that you take random samples from the following groups:
freshman, sophomore, juniors, and seniors
a survey was conducted to some of selected students from the groups. what sampling
method would you use?
A. systematic sample
, B. stratified sample
C. cluster sample
D. convenience sample - ANSWER✔✔-B. stratified sample
consider all the students enrolled at your college this semester, and report the age of
each student
which technique for gathering data was used?
A. sampling
B. experiment
C. simulation
D. census - ANSWER✔✔-D. census
when using a random number table to get a list of 9 random numbers from 57 to 634,
you would use groups of ______ digits - ANSWER✔✔-3 digits
(enough to cover the 634, no more/less)
What is the 5-number summary of the data set?
42, 41, 65, 67, 65, 63, 51, 60, 52, 64, 62, 43 - ANSWER✔✔-41, 47, 61, 64.5, 67,
Answers
1. what is the average mpg for all new cars? Using consumer reports, a random sample
variable of 35 new cars gave an average of 21.1 mpg.
Identify the variable
A. new cars
B. total miles
C. mpg
D. none of the above
2. is the variable quantitative or qualitative?
3. the individuals in this study are ______________
A. mileage for all cars
,B. total miles for all cars
C. all new cars
D. gasoline mileage for 35 new cars - ANSWER✔✔-1. C. mpg
2. quantitative
3. C. all new cars
which of the following is at ordinal level of measurement?
A. species of fish caught
B. cost of rod and reel
C. rating of fishing (poor, good, fair)
D. temperature of water in fahrenheit - ANSWER✔✔-C. rating of fishing (poor, good,
fair)
suppose that you take random samples from the following groups:
freshman, sophomore, juniors, and seniors
a survey was conducted to some of selected students from the groups. what sampling
method would you use?
A. systematic sample
, B. stratified sample
C. cluster sample
D. convenience sample - ANSWER✔✔-B. stratified sample
consider all the students enrolled at your college this semester, and report the age of
each student
which technique for gathering data was used?
A. sampling
B. experiment
C. simulation
D. census - ANSWER✔✔-D. census
when using a random number table to get a list of 9 random numbers from 57 to 634,
you would use groups of ______ digits - ANSWER✔✔-3 digits
(enough to cover the 634, no more/less)
What is the 5-number summary of the data set?
42, 41, 65, 67, 65, 63, 51, 60, 52, 64, 62, 43 - ANSWER✔✔-41, 47, 61, 64.5, 67,
