AP Statistics Practice Test 1
SECTION I
Time: 1 hour and 30 minutes
Number of questions: 40
Percentage of total grade: 50
Directions: Solve each of the following problems. Decide which is the best of the choices given and
answer in the appropriate place on the answer sheet. No credit will be given for anything written on the
exam. Do not spend too much time on any one problem.
A set of test scores has the following 5-number summary:
Which statement about outliers must be true?
A. There is exactly one outlier on the lower end.
B. There is at least one outlier on the lower end.
C. There is exactly one outlier on the higher end.
D. There is at least one outlier on the higher end.
E. There are no outliers.
The table above shows the regression output for predicting the number of calories from the number
of milligrams of sodium for items at a fast-food chain. What percent of the variation in calories is
explained by the regression model using sodium as a predictor?
A. 7.36%
B. 54.2%
C. 53.8%
D. 73.4%
E. 73.6%
- A drug company will conduct a randomized controlled study on the effectiveness of a new heart
disease medication called Heartaid. Heartaid is more expensive than the currently used medication.