stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
Duplicate of Correlation Flashcards | StudBud
Explore
/
Duplicate of Correlation
Duplicate of Correlation
20 terms
·
StudBud Administration
·
16 plays
A #math #statistics about #correlation in #scatterplots and finding the #correlationcoefficient
Flashcards
20 cards
F
Practice quiz
P
Host live
L
Questions
20
Answers
1
What would be a reasonable estimate of Years of Experience for someone with an income of 45k?
13
75
65
12
2
This company only surveyed 10 of its 400 employees. Is there sampling bias present?
Yes, there could be response bias present
No, unless the respondents lied
Yes, there could be selection bias present
No, that is a representative sample
3
What is the DIRECTION of this scatterplot?
Positive
Strong
Negative
Weak
4
To find r on your calculator, enter your data into what?
L1 and L6 only
Anywhere
L1
L1 and L2
5
Would it be unusual to meet someone with 3 years of experience making 55k?
Yes
Maybe
No
IDK
6
To enter your data in your calculator, what button do you have to push?
STAT
TESTS
MATH
CALC
7
How do you find the % for coefficient of determination (r
2
)?
Multiply r2 by itself
Turn r2 into a percent
Take a guess
Write down r2
8
What is the DIRECTION of the correlation in this scatterplot?
North
Positive
South
Negative
9
What would be a reasonable temperature for an elevation of 1750?
15
25
8
2
10
Complete the statement: The hotter it is the _____________ coffees people get.
bigger
smaller
fewer
more
11
What is the STRENGTH of this correlation?
Very strong
Very weak
Weak
Strong
12
What is the STRENGTH of this correlation?
Very weak
Weak
Very Strong
Strong
13
Complete the statement: The higher the Verbal SAT score, the ____________ the Math SAT score.
worse
Lower
same
Higher
14
What is the DIRECTION of this correlation?
Strong
Weak
Positive
Negative
15
You need to select...
G: GiveMeR
F: LinRegTTests
E: LinRegTTests
A: IDon'tKnow
16
What is the DIRECTION of this scatterplot?
Weak
None
Positive
Negative
17
What is the STRENGTH of this correlation?
Strong
Weak
Very weak
Very Strong
18
Complete the statement: The taller people are the __________ self-esteem they have.
more
worse
better
less
19
After you've entered your data, go to...
TESTS
MATH
CALC
EDIT
20
How do you find r
2
?
Copy it from a friend
It's right above r on your calculator
Take r and multiply by 2
Take r and square it
