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Correlation
Correlation
25 terms
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StudBud Administration
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A #math #statistics about #correlation in #scatterplots and finding the #correlationcoefficient
Flashcards
25 cards
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Questions
25
Answers
1
To find r on your calculator, enter your data into what?
L1 and L2
Anywhere
L1
L1 and L6 only
2
What is the STRENGTH of this correlation?
Strong
Very weak
Very Strong
Weak
3
Which variable is the explanatory variable?
temperature
Sales
degrees Celsius
dollars
4
Complete the statement: The higher the Verbal SAT score, the ____________ the Math SAT score.
Higher
worse
same
Lower
5
What is the DIRECTION of this scatterplot?
Weak
Positive
Negative
None
6
How do you find the % for coefficient of determination (r
2
)?
Turn r2 into a percent
Write down r2
Take a guess
Multiply r2 by itself
7
What is the STRENGTH of this correlation?
Strong
Very Strong
Weak
Very weak
8
What is the DIRECTION of this correlation?
Strong
Positive
Weak
Negative
9
You need to select...
G: GiveMeR
A: IDon'tKnow
F: LinRegTTests
E: LinRegTTests
10
Would it be unusual to meet someone with 3 years of experience making 55k?
Maybe
No
IDK
Yes
11
What is the STRENGTH of this correlation?
Weak
Very weak
Strong
Very strong
12
What is the DIRECTION of the correlation in this scatterplot?
North
South
Negative
Positive
13
Which film was all about applying statistics?
Moneyball
Good Will Hunting
A Beautiful Mind
The Theory of Everything
14
This company only surveyed 10 of its 400 employees. Is there sampling bias present?
No, that is a representative sample
Yes, there could be selection bias present
No, unless the respondents lied
Yes, there could be response bias present
15
How do you find r
2
?
Take r and square it
It's right above r on your calculator
Take r and multiply by 2
Copy it from a friend
16
What would be a reasonable estimate of Years of Experience for someone with an income of 45k?
12
65
13
75
17
Which recent film has made the most money worldwide (so far)?
Avengers: Infinity War
Black Panther
Furious 7
Marvel's The Avengers
18
What is the DIRECTION of this scatterplot?
Strong
Negative
Positive
Weak
19
To enter your data in your calculator, what button do you have to push?
CALC
TESTS
STAT
MATH
20
Which movie made the most money worldwide?
Jurassic World
Star Wars: The Force Awakens
Avatar
Titanic
21
Which film was #1 at the box office in May of 2002 (when Dr. Shaw graduated HS)?
Star Wars Episode II: Attack of the Clones
Lord of the Ring: Fellowship of the Ring
Spider-Man
Panic Room
22
After you've entered your data, go to...
TESTS
MATH
CALC
EDIT
23
Complete the statement: The hotter it is the _____________ coffees people get.
more
bigger
fewer
smaller
24
What would be a reasonable temperature for an elevation of 1750?
15
2
8
25
25
Complete the statement: The taller people are the __________ self-esteem they have.
worse
better
more
less
