STAT 2510 FINAL EXAM QUESTIONS
AND ANSWERS GRADED A+ 2026
A meteorologist constructs a graph showing the total precipitation in Phoenix, Arizona in each
of the months of 1998. Does this involve descriptive or inferential stats? - ANS Descriptive
In a clinical trial, 780 participants suffering from high blood pressure were randomly assigned to
three groups, each getting a different treatment. What type of experiment is this? -
ANS Designed Experiment
From a group of 496 students, every 49th student starting with the 3rd student is selected.
Identify the type of sampling used in this sample. - ANS Systematic random sampling
100,000 randomly selected adults were asked whether they drink at least 8 oz of water each
day and only 45% said yes. Identify sample and population. - ANS Sample= 100,000 adults
asked
Population= all adults
In a clinical trial where 780 people were separated into three groups to record blood pressure.
What are the treatments? - ANS The three different groups: placebo, low dosage of drug,
high dosage of drug
A chart with 5 columns: rank, last week, movie title, studio, box office sales. Respectively. What
kind of data is provided by the information in the fourth column? - ANS qualitative
@COPYRIGHT 2026/2027 ALL RIGHTS RESERVED
1
, the number of freshman entering college in a certain year is 621. Discrete or Continuous? -
ANS Discrete
the average height of all freshman entering college in a certain year is 68.4. Discrete or
Continuous? - ANS Continuous
Number of Pets: the number of pets per family. Type of grouping? - ANS Single-value
grouping
Age groups: Ages of participants in medical study, grouped 0-9, 10-19, 20-29, etc. Type of
grouping? - ANS Limit grouping
If a graph has one hump, what is it called?
Two humps?
Three humps? - ANS Uniform
Bimodal
Multimodal
5 number summary for: 2,3,6,8,9,11,14 - ANS 2, 4.5, 8, 10, 14
A card is selected randomly from a deck of 52. The events A, B, and C are defined:
A-event card selected is a heart
B-event the card selected is a club
C-event card selected is an ace
Is the collection of events A, B, C mutually exclusive? - ANS No
@COPYRIGHT 2026/2027 ALL RIGHTS RESERVED
2
AND ANSWERS GRADED A+ 2026
A meteorologist constructs a graph showing the total precipitation in Phoenix, Arizona in each
of the months of 1998. Does this involve descriptive or inferential stats? - ANS Descriptive
In a clinical trial, 780 participants suffering from high blood pressure were randomly assigned to
three groups, each getting a different treatment. What type of experiment is this? -
ANS Designed Experiment
From a group of 496 students, every 49th student starting with the 3rd student is selected.
Identify the type of sampling used in this sample. - ANS Systematic random sampling
100,000 randomly selected adults were asked whether they drink at least 8 oz of water each
day and only 45% said yes. Identify sample and population. - ANS Sample= 100,000 adults
asked
Population= all adults
In a clinical trial where 780 people were separated into three groups to record blood pressure.
What are the treatments? - ANS The three different groups: placebo, low dosage of drug,
high dosage of drug
A chart with 5 columns: rank, last week, movie title, studio, box office sales. Respectively. What
kind of data is provided by the information in the fourth column? - ANS qualitative
@COPYRIGHT 2026/2027 ALL RIGHTS RESERVED
1
, the number of freshman entering college in a certain year is 621. Discrete or Continuous? -
ANS Discrete
the average height of all freshman entering college in a certain year is 68.4. Discrete or
Continuous? - ANS Continuous
Number of Pets: the number of pets per family. Type of grouping? - ANS Single-value
grouping
Age groups: Ages of participants in medical study, grouped 0-9, 10-19, 20-29, etc. Type of
grouping? - ANS Limit grouping
If a graph has one hump, what is it called?
Two humps?
Three humps? - ANS Uniform
Bimodal
Multimodal
5 number summary for: 2,3,6,8,9,11,14 - ANS 2, 4.5, 8, 10, 14
A card is selected randomly from a deck of 52. The events A, B, and C are defined:
A-event card selected is a heart
B-event the card selected is a club
C-event card selected is an ace
Is the collection of events A, B, C mutually exclusive? - ANS No
@COPYRIGHT 2026/2027 ALL RIGHTS RESERVED
2
