6/8/25, 8:51 AM Graded Exam 1
Topic 2: Descriptive Statistics
Started on Friday, June 6, 2025, 6:04 PM
State Finished
Completed on Friday, June 6, 2025, 6:36 PM
Time taken 32 mins 13 secs
Grade 110.00 out of 125.00 (88%)
Question 1
A university wants to survey 500 students about campus facilities from a total student population
Correct
5,000. They randomly select a starting point and then choose every 10th student from the list.
5.00 points out Which sampling method are they using?
of 5.00
Select one:
a. Systematic Sampling
b. Simple Random Sampling
c. Stratified Sampling
d. Cluster Sampling
Question 2
A researcher wants to study the reading habits of students at a large university. She divides the
Correct
student body into groups based on their major field of study and randomly selects a proportionate
5.00 points out number of students from each group to survey. Which sampling method is the researcher using?
of 5.00
Select one:
a. Systematic sampling
b. Stratified sampling
c. Cluster sampling
d. Simple Random Sampling
, 6/8/25, 8:51 AM Graded Exam 1
Question 3
A researcher conducted an observational study on the relationship between hours spent on social
Correct
media per day and reported anxiety levels among adults aged 18–25. The scatter plot below
5.00 points out displays the collected data.
of 5.00
Scatterplot illustrating social media usage vs anxiety levels in young adults (18-25).
Select one:
a. There is a positive association between social media usage and anxiety levels in young
adults.
b. There is no relationship between social media usage and anxiety levels in young adults.
c. Anxiety levels determine the amount of time young adults spend on social media.
d. Spending more time on social media causes increased anxiety levels in young adults.
Topic 2: Descriptive Statistics
Started on Friday, June 6, 2025, 6:04 PM
State Finished
Completed on Friday, June 6, 2025, 6:36 PM
Time taken 32 mins 13 secs
Grade 110.00 out of 125.00 (88%)
Question 1
A university wants to survey 500 students about campus facilities from a total student population
Correct
5,000. They randomly select a starting point and then choose every 10th student from the list.
5.00 points out Which sampling method are they using?
of 5.00
Select one:
a. Systematic Sampling
b. Simple Random Sampling
c. Stratified Sampling
d. Cluster Sampling
Question 2
A researcher wants to study the reading habits of students at a large university. She divides the
Correct
student body into groups based on their major field of study and randomly selects a proportionate
5.00 points out number of students from each group to survey. Which sampling method is the researcher using?
of 5.00
Select one:
a. Systematic sampling
b. Stratified sampling
c. Cluster sampling
d. Simple Random Sampling
, 6/8/25, 8:51 AM Graded Exam 1
Question 3
A researcher conducted an observational study on the relationship between hours spent on social
Correct
media per day and reported anxiety levels among adults aged 18–25. The scatter plot below
5.00 points out displays the collected data.
of 5.00
Scatterplot illustrating social media usage vs anxiety levels in young adults (18-25).
Select one:
a. There is a positive association between social media usage and anxiety levels in young
adults.
b. There is no relationship between social media usage and anxiety levels in young adults.
c. Anxiety levels determine the amount of time young adults spend on social media.
d. Spending more time on social media causes increased anxiety levels in young adults.
