What is a lurking variable?

May influence the response variable, Not among explanatory or response variables

What is an experiment?

Directly impose treatment on individuals to measure response

What is an observational study?

Observe individuals and measure variables without influence

Which is NOT beneficial to studying this information?

Staying up until 1 am the night before

If you need to identify a possible confounding variable, explain how the variable chosen...

is associated with the explanatory variable, affects the response variable

What does 'confounding' mean?

When two similar variables' effects are indistinguishable

When can a common response occur?

When experimental and response are affected by lurking

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AP Statistics - Section 4.2: Experiments

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A statistical crash course in everything related to using studies wisely.

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Questions 11

Answers

1
What is a lurking variable?
A variable that lurks
May influence the response variable
When Winnie the Pooh is stumped
Not among explanatory or response variables
2
What is an experiment?
Uhhhhh...
Recording a child's actions while they play outside
Directly impose treatment on individuals to measure response
Something you do in science class
3
What is an observational study?
No clue!
Observe individuals and measure variables without influence
Directly impose treatment on individuals to measure response
When you give a patient medicine and record their reactions
4
Which is NOT beneficial to studying this information?
Staying up until 1 am the night before
Doing practice problems from the textbook
Asking questions in class during the lesson
Looking/reviewing your provided notes
5
True or False: In order to raise SAT scores, a confounding study was conducted.
False
True
6
What type of experiment can solve the question: Does TV make you live longer?
Confounding
Common response
Observational Study
Experiment
7
If you need to identify a possible confounding variable, explain how the variable chosen...
makes AP Statistics easier
makes you live longer
is associated with the explanatory variable
affects the response variable
8
Who is the best math teacher at MHS?
Mrs. Wilson
Mrs. Prill
Ms. O'Brien
Ms. Reilly
9
What does 'confounding' mean?
When two variables have opposite effects
When a lurking variable in a problem is discovered
When you find a con in your relationship
When two similar variables' effects are indistinguishable
10
Researchers measure the lung capacities of 100 women age 30. 50 smoke and 50 don't. This is...
A lurking variable
An observational study
A pity
An experiment
11
When can a common response occur?
When the limit does not exist
When a lurking variable is not present
When experimental and response are affected by lurking
When Ms. Prill and Schuyler get along

AP Statistics - Section 4.2: Experiments Flashcards | StudBud