WGU C955 Pre-Assessment Applied Probability and
Statistics Exam | Actual Questions and Answers Latest
Updated (Graded A+)
Correct 143
Incorrect
C955 Pre-Assessment
1 of 143
Term
1. Put the data set in order from least to greatest.
2. Find the median, or midpoint, of the data set. This can also be called
the second quartile (Q2).
3. Identify the median of the lower half of the data set and label it as Q1
(the first quartile).
4. Identify the median of the upper half of the data set and label it as
,Q3 (the third quartile)
5. Subtract Q1 from Q3 to determine the interquartile range, or IQR.
Give this one a try later!
A quiz consists of three true or false
questions.
What is the probability that there are
5 Steps to find the interquartile
exactly two true answers?
range
A) 1/8
B) 3/8
C) 1/4
D) 3/4
What is the correct line graph for y = what do box plots show and what are
3x + 5? they good for?
Don't know?
2 of 143
Definition
A coin has two sides: heads and tails. The coin is flipped three times.
Using H for heads and T for tails, what is the sample space for the given
experiment?
A) HHH, HHT, HTH, THH, HTT, THT, TTH, TTT
B) HHH, HHT, TTH, TTT
,C) HTH, THT, HTT, TTH, TTT, HHH
D) HHH, HHT, HTH, THH, TTT
Give this one a try later!
b) Simpson's paradox is avoided by having an equal number of subjects exposed to
each of the treatments in each trial.
correct answer is d. According the the Standard Deviation Rule, approximately
2.352.35 percent of all values will fall between 2 and 3 standard deviations above
the mean.
HHH, HHT, HTH, THH, HTT, THT, TTH, TTT
(this is all possible combinations of flipping a coin three times and each
theoretical way it can land)
Bar graph, measures categorical data that is distributed over discrete groups or
categories
Don't know?
3 of 143
Definition
A researcher is examining the relationship between the number of
hours of sleep and score on a cognitive test.
Which method should be used to measure the linear relationship
, between these two variables?
A) Correlation
B) Proportion
C) Quartile
D) Standard deviation
Give this one a try later!
6.5 tbsp
Correlation coefficient
Correlation
correct answer is d. According the the Standard Deviation Rule, approximately
2.352.35 percent of all values will fall between 2 and 3 standard deviations above
the mean.
Don't know?
Statistics Exam | Actual Questions and Answers Latest
Updated (Graded A+)
Correct 143
Incorrect
C955 Pre-Assessment
1 of 143
Term
1. Put the data set in order from least to greatest.
2. Find the median, or midpoint, of the data set. This can also be called
the second quartile (Q2).
3. Identify the median of the lower half of the data set and label it as Q1
(the first quartile).
4. Identify the median of the upper half of the data set and label it as
,Q3 (the third quartile)
5. Subtract Q1 from Q3 to determine the interquartile range, or IQR.
Give this one a try later!
A quiz consists of three true or false
questions.
What is the probability that there are
5 Steps to find the interquartile
exactly two true answers?
range
A) 1/8
B) 3/8
C) 1/4
D) 3/4
What is the correct line graph for y = what do box plots show and what are
3x + 5? they good for?
Don't know?
2 of 143
Definition
A coin has two sides: heads and tails. The coin is flipped three times.
Using H for heads and T for tails, what is the sample space for the given
experiment?
A) HHH, HHT, HTH, THH, HTT, THT, TTH, TTT
B) HHH, HHT, TTH, TTT
,C) HTH, THT, HTT, TTH, TTT, HHH
D) HHH, HHT, HTH, THH, TTT
Give this one a try later!
b) Simpson's paradox is avoided by having an equal number of subjects exposed to
each of the treatments in each trial.
correct answer is d. According the the Standard Deviation Rule, approximately
2.352.35 percent of all values will fall between 2 and 3 standard deviations above
the mean.
HHH, HHT, HTH, THH, HTT, THT, TTH, TTT
(this is all possible combinations of flipping a coin three times and each
theoretical way it can land)
Bar graph, measures categorical data that is distributed over discrete groups or
categories
Don't know?
3 of 143
Definition
A researcher is examining the relationship between the number of
hours of sleep and score on a cognitive test.
Which method should be used to measure the linear relationship
, between these two variables?
A) Correlation
B) Proportion
C) Quartile
D) Standard deviation
Give this one a try later!
6.5 tbsp
Correlation coefficient
Correlation
correct answer is d. According the the Standard Deviation Rule, approximately
2.352.35 percent of all values will fall between 2 and 3 standard deviations above
the mean.
Don't know?
