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AP Statistics Exam Review (all) Flashcards | StudBud
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AP Statistics Exam Review (all)
AP Statistics Exam Review (all)
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A #math #AP #statistics Quiz to review for the AP Exam
Flashcards
47 cards
F
Practice quiz
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Host live
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Questions
47
Answers
1
Identify the following symbol
Number
Population size
N for Niesner
Sample size
2
Choose the best answer.
0.18
0.24
0.45
0.30
3
If you toss a fair coin 7 times and get 7 heads, the 8th toss MUST be tails. Is this true?
Yes. Law of large #s says 50% are tails, so tails is overdue
Yes. With so many heads, a tail MUST be next.
No. You cannot predict next toss from previous toss.
No, the coin is not really fair so it could be heads again
4
Identify the following symbol
Goodness of Fit Test
Chi-Squared
Unknown Variable Squared
X-Squared
5
When using the rejection region approach, when should you reject the null hypothesis?
The p-value of the test statistic is less than α
The test statistic falls outside the rejection region
The p-value is greater than α
Test statistics falls within the rejection region
6
Choose the best answer.
H0: μ1 < μ2 ; HA: μ1 = μ2
H0: μ1=μ2 ; HA: μ1 > μ2
H0: μ1=μ2 ; HA: μ1 < μ2
H0: μ1 < μ2 ; HA: μ1 = μ2
7
Identify the following symbol
Chi-Squared
Mean of Chi
Sample Mean
Population Mean
8
Choose the best answer.
Mean: 86; Median: 88
Mean: 84; Median: 90
Mean: 88; Median: 90
Mean: 88; Median: 86
9
Choose the best answer.
0.0033
0.0566
0.0949
0.0475
10
Identify the following symbol
Sample size
Unknown number
Population size
Normal curve
11
Identify the following symbol:
Empirical Rule
Exception
Function E(X)
Expected Value
12
Identify the following symbol
Population Standard Deviation
Sample Standard Deviation
Population Variance
Sample Variance
13
Which of the following is a
qualitative
variable?
I & II
II & III
I
III
14
Choose the best answer.
2.28%
33.4%
15.9%
47.2%
15
Choose the best answer.
Loan rates from 10 of your neighbors who bank locally.
Less than one hundred loan rates from one branch in a town
Thousands of rates from all branches in the Midwest
SRS of 1000 rates from 100 randomly selected branches in U.S
16
Choose the best answer.
12
108
27
123
17
Identify the following symbol:
Difference in two proportions
Sample proportion
Population
Population proportion
18
Choose the best answer.
Histogram
Stemplot
Bar Chart
Dotplot
19
Choose the best answer.
Claiming all children do not sleep 8 hours when it is true
Claiming all children do not sleep 8 hrs, when they do.
Claiming all children do not sleep 8 hrs when it is not true
Failing to reject the claim that all children sleep 8 hours
20
Ms. Niesner is the best AP Stats teacher ever!!!
Whatever
Meh
True
False
21
Which is NOT a similarity between the
t
-distribution and the standard Normal distribution?
Both depend on degrees of freedom
Both distribution means are zero
Both are continuous distributions
Both are symmetric about the mean
22
Why is replication a good practice in experimental designs?
It "controls" the effects of known factors.
It allows for chance variation to be estimated.
It eliminates chance variation.
It makes a study random.
23
Identify the following symbol
Variance
Population standard deviation
Standard Deviation
Chi-Square
24
Identify the symbol μ
X
Mean of a distribution
Mean of a random variable
Population Mean
Sample Mean
25
Which of the following data sets has the largest standard deviation?
{1, 2, 3, 4, 5|
{1, 1, 3, 5, 5}
(1, 3, 5, 7, 9}
{1, 4, 7, 10, 13}
26
Choose the best answer.
5% probability that no attendee was less than 4.6 yrs. old.
90% of attendees' age falls between 4.6 & 6.3 years
10% probability that the mean age is not between 4.6 & 6.3
90% of pop. sampled, and their ages are between 4.6 & 6.3
27
Choose the best answer.
385
384
300
383
28
Choose the best answer.
Block
Control
Placebo
Experimental
29
Which of the following is NOT a method of random sampling?
Cluster
Systematic
Stratified
Volunteer
30
Choose the best answer.
All high school students in the country.
All freshman at the school.
All faculty, staff, and students at the school.
All students at the school
31
Choose the best answer.
15/19
19/20
3/8
19/40
32
Calculate the IQR for the following data
13
15
9
4
33
Choose the best answer.
0.70
0.45
0.42
0.13
34
Choose the best answer.
15
24
720
120
35
If a study has three factors, each with three levels, how many treatments are there?
4
5
9
6
36
Which of the following is FALSE about the power of a test?
It increases as the effect size increases
It is calculated directly from Type I error
It increases as the Type I error rate increases
It increases as β increases
37
Which measure of center is best for skewed data?
Interquartile Range
Mean
Median
Standard Deviation
38
Identify the following symbol
Alternative Hypothesis
Ha Ha! That joke was FUNNY!
Handle With Care
Null Hypothesis
39
Choose the best answer
The samples were random so the results should not be biased
There is a convenience sampling bias present for Suzy & John
The study was a single-blind study
The results will generalize because surveys were identical
40
Identify the following symbol:
Population Mean
Sample distribution
Difference of Two Means
Sample Mean
41
Identify the following symbol:
Ho Ho Ho! Santa's here!
Null Hypothesis
Hope you studied!
Alternative Hypothesis
42
Identify the following symbol:
Standard deviation of a random variable
Population standard deviation
Whistle and X
Sample standard deviation
43
Which of the following is FALSE about the Central Limit Theorem?
It is only valid if the population distribution is Normal
Distribution of sample mean is more peaked as n increases
The sample distribution becomes more Normal as n increases
As n increases, the center remains at μ
44
Identify the following symbol:
Standard Error
Population Standard Deviation
Sample Standard Deviation
Sequence or Series
45
Identify the following symbol:
Sample Proportion
Parameter
Probability
Population Proportion
46
Which test is appropriate for analyzing categorical data?
1-sample t-test
z-test
chi-square test
2 sample t-test
47
Choose the best answer.
HS pop. divided into similar groups; a SRS receive survey
Study about HS students but survey only given to girls
A small portion of surveys are returned
Texting & driving survey given in front of teen's parents
