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Probability and Statistics

Probability and Statistics

Probability and Statistics: Nothing Really Scatters Quiz

Think you’ve got your head wrapped around Probability and Statistics? Put your knowledge to the test. Good luck — the Stickman is counting on you!
Q. Which example of bivariate data has two qualitative variables?


A record of each student's age and favorite backpack color.
A record of each student's hair color and favorite backpack color.
A record of each student's weight and height.
A record of each student's age and weekly allowance.
A record of each student's prior criminal activity and amount of getaway money.
Q. Which example of bivariate data has one qualitative variable and one quantitative variable?


A record of each student's age and favorite backpack color.
A record of each student's hair color and favorite backpack color.
A record of each student's weight and height.
A record of each student's age and weekly allowance.
A record of each student's klutziness and dorkitude.
Q. What is the range of the variable x in the following data?



From 4 to 9
From 4 to 20
5
16
20
Q. Which scatter plot could be generated by the following data regarding the ages and weekly allowances of various kids from Madeup Town? 



Q. Which scatter plot agrees with the (completely unscientific) finding that the more sunscreen one wears, the fewer freckles one is likely to get?


Your face.

Q. Determine the type of correlation, if any, between the two variables. 



No correlation
Positive correlation
Negative correlation
Q. Determine the type of correlation, if any, between the two variables. 



No correlation
Positive correlation
Negative correlation
Q. The more time Angela spends at work, the less time she has to spend playing. Well, that's true, Angela, but the more you work, the more money you have to spend so you can play with some really nice stuff. Determine the type of correlation, if any, between the two variables in the statement. Just the first statement, not the second, silly one.


No correlation
Positive correlation
Negative correlation
Q. Which line best fits the data? 



y = x
y = 2x
y = x + 1
y = -x
Q. Which line is closest to the line of best fit?



y = x

y = 2x

y = x + 1

y = -x

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