age 1 of 19
Straighterline Statistics FINAL EXAM PREP 2025/2026
COMPLETE QUESTIONS WITH CORRECT DETAILED
ANSWERS || 100% GUARANTEED PASS <BRAND
NEW VERSION>
In research studies, which situation demonstrates self selection
bias .......Answer.........In an online survey on gun control, gun
owners were twice as likely to respond as non-owners
A guidance counselor wants to administer a survey to students in
her school. Why might she choose stratified sampling over simple
random sampling .......Answer.........To ensure that students from
all grades are represented
,age 2 of 19
anais is organizing her rock collection and places each rock in
one of three categories: small, medium, or large. this illustrates
what level of measurement? .......Answer.........ordinal
which of the following is an example of a nominal variable?
.......Answer.........gender
what sort of data are temperature measurements?
.......Answer.........ratio
based on the graph, which statement best describes the
relationship between daily high temperatures and the number of
people going to the beach? .......Answer.........it is negative linear
relationship
the table shows the number of train tickets carl purchased to
each station over the last month and the fare to each station.
what was the average cost per ride? .......Answer.........$5.45
, age 3 of 19
the outcomes observes in an experiment are: 2, 8, 3, 10, 4, and
9. what is the sample variance? .......Answer.........11.6
jason collects information about annual family income from each
student at his college. he computes both the mean and median
family income across all students and is surprised to find that the
mean income is higher than the median income. what is the most
likely reason for the difference in the mean and the median?
.......Answer.........the mean is more affected by a small number of
extreme values
an instructor administers a test to a class of 30 students and
observes that the scores are close to normally distributed with a
mean score of 40 and a standard deviation of 10. what can you
conclude from these results? .......Answer.........the average student
scored at the 40th percentile
Straighterline Statistics FINAL EXAM PREP 2025/2026
COMPLETE QUESTIONS WITH CORRECT DETAILED
ANSWERS || 100% GUARANTEED PASS <BRAND
NEW VERSION>
In research studies, which situation demonstrates self selection
bias .......Answer.........In an online survey on gun control, gun
owners were twice as likely to respond as non-owners
A guidance counselor wants to administer a survey to students in
her school. Why might she choose stratified sampling over simple
random sampling .......Answer.........To ensure that students from
all grades are represented
,age 2 of 19
anais is organizing her rock collection and places each rock in
one of three categories: small, medium, or large. this illustrates
what level of measurement? .......Answer.........ordinal
which of the following is an example of a nominal variable?
.......Answer.........gender
what sort of data are temperature measurements?
.......Answer.........ratio
based on the graph, which statement best describes the
relationship between daily high temperatures and the number of
people going to the beach? .......Answer.........it is negative linear
relationship
the table shows the number of train tickets carl purchased to
each station over the last month and the fare to each station.
what was the average cost per ride? .......Answer.........$5.45
, age 3 of 19
the outcomes observes in an experiment are: 2, 8, 3, 10, 4, and
9. what is the sample variance? .......Answer.........11.6
jason collects information about annual family income from each
student at his college. he computes both the mean and median
family income across all students and is surprised to find that the
mean income is higher than the median income. what is the most
likely reason for the difference in the mean and the median?
.......Answer.........the mean is more affected by a small number of
extreme values
an instructor administers a test to a class of 30 students and
observes that the scores are close to normally distributed with a
mean score of 40 and a standard deviation of 10. what can you
conclude from these results? .......Answer.........the average student
scored at the 40th percentile
