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- Multiple ChoicePlease save your changes before editing any questions.What is a line of best fit used for?To make predictionsTo make the graph look prettyTo connect the pointsTo make it look like you know what you are doing
- Multiple ChoicePlease save your changes before editing any questions.What type of association does this graph have?positivenegativenoneall of the above
- Multiple ChoicePlease save your changes before editing any questions.About how many male math teachers were there in 2006?15303545
- Multiple ChoicePlease save your changes before editing any questions.What type of association does this graph show?Positivenegativenoneall of the above
- Multiple ChoicePlease save your changes before editing any questions.Which sentence describes the relationship shown on this scatter plot?As the temperature decreases, the visitors increase.As the temperature increases, the number of visitors increases.As the visitors increase, the temperature decreases.No correlation
- Multiple ChoicePlease save your changes before editing any questions.What would be the correlation between study time and test grades?positivenegativenonecannot be determined
- Multiple ChoicePlease save your changes before editing any questions.
Determine the predicted income if 22 hours were worked on an assembly job.
$207.30
$449.60
$691.90
$543.30
- Multiple ChoicePlease save your changes before editing any questions.What type of correlation do you think there is between:
Time Spent Watching TV & GradesPositive correlationNegative correlationNo correlationcannot be determined - Multiple ChoicePlease save your changes before editing any questions.What would be the correlation be between study time and test grades?positive correlationnegative correlationno correlationcannot be determined
- Multiple ChoicePlease save your changes before editing any questions.
This measures how strong or weak the relationship between 2 quantitative variables are.
Scatter Plot
Causation
Correlation
Line of best fit
- Multiple ChoicePlease save your changes before editing any questions.
What does the value, r= -0.89, tell us about the linear relationship of two quantitative variables?
Strong positive
Weak positive
Strong negative
Weak negative
- Multiple ChoicePlease save your changes before editing any questions.When you check your scatter plot to see if it is straight (linear), curved, or any other pattern you are looking at _________FormDirectionOutlierStrength
- Multiple ChoicePlease save your changes before editing any questions.
Determine the correlation coefficient of the given data:
.9820
-.9643
1.409
.6864
- Multiple ChoicePlease save your changes before editing any questions.
Is this line an accurate line estimate of best fit for the data?
Yes
No
- Multiple ChoicePlease save your changes before editing any questions.
Is this line an accurate line estimate of best fit for the data?
Yes
No
- Multiple ChoicePlease save your changes before editing any questions.
Shape?
Skewed right
Skewed left
Symmetric
Normal
- Multiple ChoicePlease save your changes before editing any questions.
What type of Correlation?
Positive Correlation
Negative Correlation
No Correlation
- Multiple ChoicePlease save your changes before editing any questions.
What type of Correlation?
Positive Correlation
Negative Correlation
No Correlation
- Multiple ChoicePlease save your changes before editing any questions.Which graph has a correlation coefficient (r) of about -.6 ?abcd
- Multiple ChoicePlease save your changes before editing any questions.
What is the y-intercept?
-2
3
2
-3