Transcript APSTATS CH7

AP Stats
Chapter 7 Review
Nick Friedl,
Patrick Donovan,
Jay Dirienzo
Q1: A variable whose value is a numerical
outcome of a random phenomenon.
Random Variable
Expected Value
Normal Distribution
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
Go to Q2
Q2: This graph is an example of:
Uniform Distribution
Density Curve
Probability Histogram
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
Go to Q3
Q3: _____ tells us what the possible values of
X are and how probabilities are assigned to
those values.
Probability Distribution
Variance
Discrete Random
Variable
Probability Distribution is correct!
Go to Q4
That is incorrect
The correct answer is Probability Distribution
Go to Q4
Q4: The average of the squares of the
standard deviations of the observations from
their mean is
Quantitative
Critical
Variance
Critical is incorrect
The correct answer is Variance
Go to Q5
Quantitative is incorrect
The correct answer
Go to Q5
Variance is correct!
Go to Q5
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.
Pythagorean Theorem
Bill of Rights
Law of Large Numbers
Simpson’s Paradox
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!
Go to Q6
Q6: Expected value is the __________ of all
possible outcomes of a random variable.
Sum
Cumulative Frequency
Relative Frequency
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
Go to Q7
Q7: A type of continuous distribution:
Continuous Random
Variable
Normal Distribution
Normal Shmistribution
Normal Distribution is correct!
Go to Q8
That is incorrect
The correct answer is Normal Distribution
Go to Q8
Q8: The distribution of a random variable in
which each value has the same probability of
occurance:
Uniform Distribution
Probability
Histogram
Density Curve
That is incorrect
The correct answer is Uniform Distribution
Go to Q9
Uniform Distribution is correct!
Go to Q9
Q9: Takes all values in some intervals of
numbers:
Integer Variables
Irregular Numbers
Continuous Random
Variable
That is incorrect
The correct answer is Continuous Random Variable
Go to Q10
Continuous Random Variable is correct!
Go to Q10
Q10: An average of the products of the
standardized X and Y observations
Correlation
Variance
Distribution
Correlation is correct!
End!
Distribution is incorrect
The correct answer is Correlation
End!
Variance is incorrect
The correct answer is Correlation
End!
Thanks for reviewing the
Chapter 1 vocabulary!