WGU C207 DATA DRIVEN DECISION MAKING FINAL PAPER
2025/2026 QUESTIONS WITH SOLUTION GRADED A+
✔✔Uses experimental design and optimization to predict a future - ✔✔Prescriptive
✔✔If we move to six appointments an hour we can increase revenue 2%. Which form of
analytics is this? - ✔✔Prescriptive - We are taking a specific course of action
✔✔Based on the last four quarters, we can predict $4,1 million in sales next quarter.
Which form of analytics is this? - ✔✔Predictive: We aren't taking any action
✔✔The number of appointments per day averaged 7 over the last 6 months. Which
form of analytics is this? - ✔✔Descriptive: We are only describing the past. No future
predictions are made.
✔✔Is Big Data structured, unstructured or both? - ✔✔Both
✔✔Where do we store big data - ✔✔In a big data warehouse
✔✔Why do marketing teams use big data? - ✔✔"Datamining" assists in targeting the
best customers for new products or reaching existing customers for like products
✔✔Name the 4 levels of measurement - ✔✔(NOIR) Nominal, Ordinal, Interval Ratio
✔✔Continuous data with unique zero point is _______ level of measurement. -
✔✔Ratio
✔✔Orders data at equal distance apart is _______ level of measurement. - ✔✔Interval
✔✔Identify, Group, or Categorize is _______ level of measurement. - ✔✔Nominal
✔✔The colors of cars is which level of measurement? - ✔✔Nominal
✔✔The price of the car is which level of measurement? - ✔✔Ratio
✔✔Which level of measurement can be multiplied and divided? - ✔✔Ratio
✔✔Which level of measurement cannot be analyzed which most statistical test? -
✔✔Nominal
✔✔Correlation is not _________ - ✔✔Causation
, ✔✔A good sample of the population being studied will be the right size and
___________ - ✔✔Random
✔✔If a sample is not random it creates ____________ - ✔✔Measurement Bias
✔✔If a sample is not the right size it creates ___________ - ✔✔Measurement Bias
✔✔Measuring the housing market in North Carolina when making an inference about
the entire East coast is an example of __________ - ✔✔Non-representative Sample
✔✔Lemonade sales increase when it is warmer than 75 degrees. Weather and
lemonade are __________ - ✔✔Correlated. "NOT CAUSE"
✔✔Pulling names from a hat is a tool to create a ______ sample - ✔✔Random
✔✔Asking participants to taste test a yellow candy and a blue candy and select one can
create bias. How can we prevent bias? - ✔✔Blinding
✔✔You are taking a survey and the question is leading. It seams advantageous to
answer a specific way. What type of bias is this? - ✔✔Conscious KEYWORD: Benefit
✔✔A question is not leading, but you feel your boss might want you to answer a specific
way - ✔✔Response You feel there is an "expected" response and may not answer
honestly (no leading )
✔✔pread of the data - ✔✔Standard Deviation A normally distributed sample spreads
from -3 to +3 standard deviations from the mean
✔✔We should not use this measure of central tendency alone for decisions because it
includes outliers - ✔✔Mean
✔✔The best measure of central tendency when making decisions - ✔✔Median
✔✔We use this measure of central tendency if we want to know what happens the most
- ✔✔Mode (most can also be defined as typical or common)
✔✔If the mean is 50 and the standard deviation is 5, what is the probability of being
between 45 and 55? - ✔✔68.2% (of the sample will be within 1 standard deviation of the
mean) 50 - 5 = 45 and 50 + 5 + =55
✔✔What are the three probabilities of the bell curve? - ✔✔68.2% 95.4% 99.7%
✔✔68.2% of a sample will be within _______ standard deviation of the mean. - ✔✔1
2025/2026 QUESTIONS WITH SOLUTION GRADED A+
✔✔Uses experimental design and optimization to predict a future - ✔✔Prescriptive
✔✔If we move to six appointments an hour we can increase revenue 2%. Which form of
analytics is this? - ✔✔Prescriptive - We are taking a specific course of action
✔✔Based on the last four quarters, we can predict $4,1 million in sales next quarter.
Which form of analytics is this? - ✔✔Predictive: We aren't taking any action
✔✔The number of appointments per day averaged 7 over the last 6 months. Which
form of analytics is this? - ✔✔Descriptive: We are only describing the past. No future
predictions are made.
✔✔Is Big Data structured, unstructured or both? - ✔✔Both
✔✔Where do we store big data - ✔✔In a big data warehouse
✔✔Why do marketing teams use big data? - ✔✔"Datamining" assists in targeting the
best customers for new products or reaching existing customers for like products
✔✔Name the 4 levels of measurement - ✔✔(NOIR) Nominal, Ordinal, Interval Ratio
✔✔Continuous data with unique zero point is _______ level of measurement. -
✔✔Ratio
✔✔Orders data at equal distance apart is _______ level of measurement. - ✔✔Interval
✔✔Identify, Group, or Categorize is _______ level of measurement. - ✔✔Nominal
✔✔The colors of cars is which level of measurement? - ✔✔Nominal
✔✔The price of the car is which level of measurement? - ✔✔Ratio
✔✔Which level of measurement can be multiplied and divided? - ✔✔Ratio
✔✔Which level of measurement cannot be analyzed which most statistical test? -
✔✔Nominal
✔✔Correlation is not _________ - ✔✔Causation
, ✔✔A good sample of the population being studied will be the right size and
___________ - ✔✔Random
✔✔If a sample is not random it creates ____________ - ✔✔Measurement Bias
✔✔If a sample is not the right size it creates ___________ - ✔✔Measurement Bias
✔✔Measuring the housing market in North Carolina when making an inference about
the entire East coast is an example of __________ - ✔✔Non-representative Sample
✔✔Lemonade sales increase when it is warmer than 75 degrees. Weather and
lemonade are __________ - ✔✔Correlated. "NOT CAUSE"
✔✔Pulling names from a hat is a tool to create a ______ sample - ✔✔Random
✔✔Asking participants to taste test a yellow candy and a blue candy and select one can
create bias. How can we prevent bias? - ✔✔Blinding
✔✔You are taking a survey and the question is leading. It seams advantageous to
answer a specific way. What type of bias is this? - ✔✔Conscious KEYWORD: Benefit
✔✔A question is not leading, but you feel your boss might want you to answer a specific
way - ✔✔Response You feel there is an "expected" response and may not answer
honestly (no leading )
✔✔pread of the data - ✔✔Standard Deviation A normally distributed sample spreads
from -3 to +3 standard deviations from the mean
✔✔We should not use this measure of central tendency alone for decisions because it
includes outliers - ✔✔Mean
✔✔The best measure of central tendency when making decisions - ✔✔Median
✔✔We use this measure of central tendency if we want to know what happens the most
- ✔✔Mode (most can also be defined as typical or common)
✔✔If the mean is 50 and the standard deviation is 5, what is the probability of being
between 45 and 55? - ✔✔68.2% (of the sample will be within 1 standard deviation of the
mean) 50 - 5 = 45 and 50 + 5 + =55
✔✔What are the three probabilities of the bell curve? - ✔✔68.2% 95.4% 99.7%
✔✔68.2% of a sample will be within _______ standard deviation of the mean. - ✔✔1
