
AP Statistics Review
Authored by Anthony Clark
Mathematics
12th Grade
CCSS covered

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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following is true of the correlation r?
It is a resistant measure of association
It's between -1 and 1 inclusively.
If r is the correlation between X and Y, then -r is the correlation between Y and X
Whenever all the data lie on a perfectly straight-line, the correlation will always be equal to +1.0
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What shape is a normal distribution curve?
Half curve
Round curve
Bell curve
Square curve
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The stem-and-leaf diagram below gives the distribution of the ages in years of 20 participants at a family reunion. Which of the following statements about the distribution is correct?
The distribution of ages is skewed left.
The median age was 45 years old.
The oldest person in attendance was 98.
20% of the attendees are younger than 10 years old.
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Of the following dotplots, which represents the set of data that has the greatest standard deviation?
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Gina's doctor told her that the standardized score (z- score) for her systolic blood pressure, as compared to the blood pressure of other women her age, is 1.50. Which of the following is the best interpretation of this standardized score?
Gina's systolic blood pressure is 150.
Gina's systolic blood pressure is 1.50 standard deviations above the average systolic blood pressure of women her age.
Gina's systolic blood pressure is 1.50 above the average systolic blood pressure of women her age.
Gina's systolic blood pressure is 1.50 times the average systolic blood pressure for women her age.
Only 1.5% of women Gina's age have a higher systolic blood pressure than she does.
6.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Which of the graphs would have a correlation coefficient of r = 0.69 ?
7.
MULTIPLE SELECT QUESTION
1 min • 5 pts
The ___________________ measures the percent of the variability in the response variable that is accounted for by the least-squares regression line.
correlation r
coefficient of relaxation
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