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AP Statistics Semester 1 Review (TPS2e)
AP Statistics Semester 1 Review (TPS2e)
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1st semester AP Statistics review (The Practice of Statistics, 2nd edition, Chapters 1-8)
Flashcards
21 cards
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Practice quiz
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Questions
21
Answers
1
On the scatterplot, which point would be considered an outlier?
10 (BIOMED)
2 (PHAS)
11 (CMED)
9 (BLS)
2
Give the z-score for the 3rd quartile of a standard normal distribution.
0.75
1.00
0.25
0.67
3
Find probability of getting at least 1 tail when flipping 3 fair coins.
1/8
7/8
3/8
1/2
4
The distribution shown can be best described as which of the following?
approximately normal
bimodal
left skewed
right skewed
5
Where did Mrs. Angood go to college?
WMU
Wheaton College
GVSU
Hope
6
Mean test grade = 70 with S.D. = 10. Find mean and S.D. if all test grades are doubled.
mean = 140, S.D. = 10
mean = 70, S.D. = 10
mean = 70, S.D. = 20
mean = 140, S.D. = 20
7
P(A) = 0.60, P(B) = 0.20, and P(A and B) = 0.10. What is P(A or B)?
0.60
0.80
0.90
0.70
8
What is the IQR for this ogive?
37
7
57
17
9
Which is NOT a condition that needs to be satisfied in a binomial setting?
observations need to be approximately normal
observations are independent
probability of success is the same for each observation
fixed number of observations
10
P(A) = 0.60, P(B) = 0.20, and A and B are independent. What is P(A or B)?
0.70
0.12
Not enough info to answer the question
0.68
11
Every 3rd person that enters the room gets to participate in a survey. This type of sampling is
convenience sampling
stratified random sampling
systematic sampling
cluster sampling
12
What is the expected value of the discrete random variable x?
2
0.25
2.65
3.15
13
What fraction of the variation of cost is explained by the least squares regression?
95.4%
82.8%
91.0%
51.1%
14
On a normal curve, what percent of values fall within 2 standard deviations of the mean?
about 99.7%
about 68%
about 50%
about 95%
15
Which of these measurements is resistant to outliers?
mean
median
range
standard deviation
16
A line is fit to data between the years 1990-2000. Using this to predict a 2015 value is
Simpson's Paradox
common response
extrapolation
causation
17
Which of the following statements is correct about this histogram?
mean = median
mean < mode
mean > median
mean < median
18
What kind of bias is taking place here?
wording bias
response bias
undercoverage
nonresponse bias
19
On a fair die, find the probability of rolling at least 3 "ones" when rolling 5 times.
1-binomcdf(5,1/6,3)
binomcdf(5,1/6,3)
1-binomcdf(5,1/6,2)
binomcdf(5,1/6,2)
20
What is the date of the AP Stats Exam this year?
May 12
May 13
May 10
May 11
21
A basketball player makes 80% of their shots. Find the mean number of makes if n = 10.
10 x 0.80 x 0.20
binomcdf(10, 0.80)
10 x 0.80
binompdf (10, 0.80)
