WGU C207 STUDY GUIDE MODULE 1 AND 2
2026 QUESTIONS AND CORRECT
ANSWERS A+ EXAM REVIEW PRACTICE
TEST AND STUDY GUIDE
the official think about here? - CORRECT ANSWER-Is there a casual
relationship?
For the scatter diagram below, which of the following describes the
correlation? - CORRECT ANSWER-Strong Negative
We examine a population with normal distribution having mean 1,000 &
standard deviation 50. What percentage of the population lies between 850
& 1150? - CORRECT ANSWER-99.7%
We examine a population with normal distribution having mean 1,000 &
standard deviation 50. What percentage of the population lies between 900
& 1100? - CORRECT ANSWER-95%
We examine a population with normal distribution having mean 1,000 &
standard deviation 50. What percentage of the population lies between 950
& 1050? - CORRECT ANSWER-68%
How are Z-scores from a population with normal distribution distributed? -
CORRECT ANSWER-Normal distribution with mean 0 standard
deviation1
, If we need to examine the relationship age & salary which of the following
would be most useful? - CORRECT ANSWER-Scatter plot
Consider a population with mean 100 & standard deviation of 10. if we
randomly select a data point from the population what is the probability
that the point will be between 90 & 110 ? (Hint: consider the z-scores) -
CORRECT ANSWER-68%
A gym owner wants to know the TYPICAL time a patron spends at the gym.
What is the best statistic to consider? - CORRECT ANSWER-Mode
What z-score should be used to find the 95% confidence interval? -
CORRECT ANSWER-1.96
What z-score should be used to find the 99% confiden Analytics -
CORRECT ANSWER-is the discovery, analysis and communication of
meaningful patterns in data
information bias - CORRECT ANSWER-is a prejudice in data that results
when either the respondent or the interviewer have & agenda that affects
responses
ordinal data - CORRECT ANSWER-places data into categories that are
ordered by a predetermined criteria
2026 QUESTIONS AND CORRECT
ANSWERS A+ EXAM REVIEW PRACTICE
TEST AND STUDY GUIDE
the official think about here? - CORRECT ANSWER-Is there a casual
relationship?
For the scatter diagram below, which of the following describes the
correlation? - CORRECT ANSWER-Strong Negative
We examine a population with normal distribution having mean 1,000 &
standard deviation 50. What percentage of the population lies between 850
& 1150? - CORRECT ANSWER-99.7%
We examine a population with normal distribution having mean 1,000 &
standard deviation 50. What percentage of the population lies between 900
& 1100? - CORRECT ANSWER-95%
We examine a population with normal distribution having mean 1,000 &
standard deviation 50. What percentage of the population lies between 950
& 1050? - CORRECT ANSWER-68%
How are Z-scores from a population with normal distribution distributed? -
CORRECT ANSWER-Normal distribution with mean 0 standard
deviation1
, If we need to examine the relationship age & salary which of the following
would be most useful? - CORRECT ANSWER-Scatter plot
Consider a population with mean 100 & standard deviation of 10. if we
randomly select a data point from the population what is the probability
that the point will be between 90 & 110 ? (Hint: consider the z-scores) -
CORRECT ANSWER-68%
A gym owner wants to know the TYPICAL time a patron spends at the gym.
What is the best statistic to consider? - CORRECT ANSWER-Mode
What z-score should be used to find the 95% confidence interval? -
CORRECT ANSWER-1.96
What z-score should be used to find the 99% confiden Analytics -
CORRECT ANSWER-is the discovery, analysis and communication of
meaningful patterns in data
information bias - CORRECT ANSWER-is a prejudice in data that results
when either the respondent or the interviewer have & agenda that affects
responses
ordinal data - CORRECT ANSWER-places data into categories that are
ordered by a predetermined criteria
