AP StatsChapter 7 Review

Nick Friedl, Patrick Donovan,

Jay Dirienzo

Q1: A variable whose value is a numerical outcome of a random phenomenon.

Expected Value Normal DistributionRandom Variable

Go to Q2

Expected Value is incorrect

The correct answer was Random Variable

Go to Q2

Random Variable is correct!

Go to Q2

Normal Distribution is incorrect

The correct answer is Random Variable

Q2: This graph is an example of:

Density Curve Probability HistogramUniform Distribution

Go to Q3

Uniform Distribution is incorrect

The correct answer is Probability Histogram

Go to Q3

Probability Histogram is correct!

Go to Q3

Density Curve is incorrect

The correct answer is Probability Histogram

Q3: _____ tells us what the possible values of X are and how probabilities are assigned to

those values.

Variance Discrete Random VariableProbability Distribution

Go to Q4

Probability Distribution is correct!

Go to Q4

That is incorrect

The correct answer is Probability Distribution

Q4: The average of the squares of the standard deviations of the observations from

their mean is

Critical VarianceQuantitative

Go to Q5

Critical is incorrect

The correct answer is Variance

Go to Q5

Quantitative is incorrect

The correct answer

Go to Q5

Variance is correct!

Q5: A theorem that describes the result of performing the same experiment a large

number of times. According to the law, the average of the results obtained from a large

number of trials should be close to the expected value, and will tend to become

closer as more trials are performed.

Simpson’s Paradox

Law of Large NumbersBill of Rights

Pythagorean Theorem

Go to Q6

That is incorrect

The correct answer is Law of Large Numbers

Go to Q6

Simpson’s Paradox is incorrect

The correct answer is Law of Large Numbers

Go to Q6

Law of Large Numbers is correct!

Q6: Expected value is the __________ of all possible outcomes of a random variable.

Cumulative Frequency Relative FrequencySum

Go to Q7

Sum is correct!

Go to Q7

Relative Frequency is incorrect

The correct answer is Sum

Go to Q7

Cumulative Frequency is incorrect

The correct is Sum

Q7: A type of continuous distribution:

Normal Distribution Normal ShmistributionContinuous Random Variable

Go to Q8

Normal Distribution is correct!

Go to Q8

That is incorrect

The correct answer is Normal Distribution

Q8: The distribution of a random variable in which each value has the same probability of

occurance:

Probability Histogram Density CurveUniform Distribution

Go to Q9

That is incorrect

The correct answer is Uniform Distribution

Go to Q9

Uniform Distribution is correct!

Q9: Takes all values in some intervals of numbers:

Irregular NumbersContinuous Random

VariableInteger Variables

Go to Q10

That is incorrect

The correct answer is Continuous Random Variable

Go to Q10

Continuous Random Variable is correct!

Q10: An average of the products of the standardized X and Y observations

Variance DistributionCorrelation

End!

Correlation is correct!

End!

Distribution is incorrect

The correct answer is Correlation

End!

Variance is incorrect

The correct answer is Correlation

Thanks for reviewing the Chapter 1 vocabulary!