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AP Statistics Review 4 Flashcards | StudBud
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AP Statistics Review 4
AP Statistics Review 4
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#APStats #Midterm
Flashcards
11 cards
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Questions
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Answers
1
what is the standardized score for the student after the conversion?
z = 1.98
The new z-score cannot be determined
z = 1.03
z = 1.72
2
What percent of 8-ounce cans of the cola have a caffeine content greater than 35 mg?
12%
8%
1%
16%
3
Which of the following populations is 28 percent a reasonable estimate?
All math teachers who have taken 1 or more stats courses
All math teachers
All math teachers at the conference
All teachers who attended the conference
4
What are the interquartile range (IQR) and the standard deviation of the corrected areas?
IQR 202; SD 161.0723
IQR 202; SD 61.0723
IQR 102; SD 161.0723
IQR 102; SD 61.0723
5
If X and Y are independent, approximately what is the standard deviation of X - Y ?
17.5
12.0
24.0
6.0
6
Of the following, which is the best example of nonresponse bias?
Many people selected to participate may not respond.
Wording of a question leads people to respond a certain way
Behavior of interviewer leads people to respond certain way
People uncomfortable with questions don't respond truthfully
7
What is the probability that at least 8 of the 9 will correctly identify the tap water?
0.002
0.0195
0.9805
0.8889
8
Which of the following statistics is defined as the 50th percentile?
The Median
The Mean
The First Quartile
The Mode
9
Which of the following best describes the type of sample that was taken?
A Stratified Random Sample
A Cluster Sample
A Simple Random Sample
A Systematic Random Sample
10
If they are independent how many female students surveyed would be expected to have brown eyes?
90
5
20
30
11
Which of the following best describes the shape of the distribution of used car prices?
Skewed to the right (positively skewed)
Skewed to the left (negatively skewed)
Bimodal
Approximately Normal
