# Advanced Placement: Can You Actually Pass This Statistics Test? Trivia Quiz

5 Questions | Total Attempts: 509  Settings  Are you in Advanced Placement, Can You Actually Pass This Statistics Test? If you are in the class you must be a genius when it comes to the game of numbers. Are you feeling up to a challenge today? The quiz will give you all the practice you need. All you need to do is press the start button and share your score once done with the quiz.

• 1.
Suppose there is a correlation of r = 0.8 between number of hours per day students study and GPAs. Which of the following is a reasonable conclusion?
• A.

• B.

• C.

80% of the variation in GPAs can be explained by variation in number of study hours.

• D.

20% of the variation in GPAs cannot be explained by variation in number of study hours per day.

• E.

64% of the variation in GPAs can be explained by variation in number of study hours per day.

• 2.
A soft drink dispenser can be adjusted to deliver any fixed number of ounces of soft drink. If the machine is operating with a standard deviation in delivery equal to 0.3 ounces, what should be the mean setting so that a 12-ounce cup will overflow less then 1% of the time? Assume a normal distribution for ounces delivered.
• A.

11.23 ounces

• B.

11.30 ounces

• C.

11.70 ounces

• D.

12.70 ounces

• E.

12.77 ounces

• 3.
Consider the following back-to-back stemplot. Which of the following are true statements? (I) The distributions have the same mean. (II) The distributions have the same range. (III) The distributions have the same standard deviation.
• A.

II

• B.

I and II

• C.

I and III

• D.

II and III

• E.

I, II and III

• 4.
To survey the opinions of the students at your high school, a researcher plans to select every twenty-fifth student entering the school in the morning. Assuming there are no absences, will this result in a simple random sample of students attending your school?
• A.

Yes, because every students has the same chance of being selected.

• B.

Yes, but only if there is a single entrance to the school.

• C.

Yes, because the 24 out of every 25 students who are not selected will form a control group.

• D.

Yes, because this is an example of systematic sampling, which is a special case of simple random sampling.

• E.

No, because not every sample of the intended size has an equal chance of being selected.

• 5.
A plumbing contractor obtains 60% of her boiler circulators from a company whose defect rate is 0.005, and the rest from a company whose defect rate is 0.010.  What proportion of the circulators can be expected to be defective? If a circulator is defective, what is the probability that it came from the first company?
• A.

.0070, .429

• B.

.0070, .600

• C.

.0075, .500

• D.

.0075, .600

• E.

.0150, .571

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