Graded Quiz: Sampling, Distribution, and Variables: Statistics Foundations (Meta Marketing Analytics Professional Certificate) Answers 2025

Question 1

How does kurtosis affect the shape of the graph of a distribution?

• ✅ Kurtosis will cause the graph to be either tall and narrow or short and wide.

• ❌ Kurtosis determines if the graph leans to the right or left.

• ❌ Kurtosis determines how short and right-leaning it is.

• ❌ Kurtosis determines how wide and right-leaning the graph is.

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Question 2

What sampling technique is depicted in this scenario?

A student club polls ten students from each class (freshmen, sophomores, etc.)

• ❌ Simple random

• ❌ Systematic

• ✅ Stratified

• ❌ One-at-a-time

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Question 3

True or false: Transformations can correct for skew.

• ✅ True

• ❌ False

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Question 4

Which of the following is not an example of a quantitative variable?

• ❌ The time it takes to fly between two cities.

• ❌ The volume of gasoline in a car’s tank.

• ✅ A person’s phone number.

• ❌ The price of an item on a restaurant menu.

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Question 5

What is a qualitative variable?

• ❌ A variable that represents the size of an object.

• ❌ A variable that is numeric.

• ✅ A variable that represents a quality of an object.

• ❌ A variable that represents a quantity.

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Question 6

Which is a subtype of quantitative variables?

• ❌ Ordinal

• ❌ Nominal

• ✅ Discrete

• ❌ Random

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Question 7

What are independent variables?

• ❌ They are variables that describe the order of objects.

• ❌ They are variables that you measure in a test.

• ✅ They are the variables that you can control in a test or experiment.

• ❌ They are variables that are numeric.

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Question 8

Which one of the following is a subtype of qualitative variables?

• ✅ Ordinal

• ❌ Random

• ❌ Discrete

• ❌ Continuous

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Question 9

What is the exponential distribution?

• ✅ A distribution that involves a component of time.

• ❌ A distribution that gives probability based on number of times something happened.

• ❌ A distribution in which all values have an equal chance.

• ❌ A distribution that is shaped like a bell.

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🧾 Summary Table

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