stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
Duplicate of AP Statistics Final Exam Review Flashcards | StudBud
Explore
/
Duplicate of AP Statistics Final Exam Review
Duplicate of AP Statistics Final Exam Review
39 terms
·
StudBud Administration
Musgrove's final exam review
Flashcards
39 cards
F
Practice quiz
P
Host live
L
Questions
39
Answers
1
Which data type: points awarded to Hufflepuff.
Discrete
Continous
Bivariate
2
X~N(15,2.3), 99.7% of the data is between what two numbers?
10.4 and 19.6
8.1 and 21.9
5.8 and 26.3
17.3 and 12.7
3
Failing to reject the Ho when the Ho is false
Type I error
Type III error
Type II error
Correct decision
4
Musgrove gives candy to 1st block, coffee to 2nd block, and nothing to 4th. Which is this?
Observational Study! Treatments were applied.
Experiment! Treatments were applied.
Experiment! *No* treatments were applied.
Observational Study! *No* treatments were applied.
5
Which type of test checks for an association between two CATEGORICAL variables?
χ2 Test for independence
χ2 Test for goodness of fit
2 prop z test
1 sample t test for slope
6
Failing to reject the Ho when the Ho is true
Type III error
Type I error
Type II error
Correct decision
7
X~N(100, 25), what percent of the data is between 75 and 125?
95%
100%
99.7%
68%
8
Lexi records her drive time to work every day for her year & calculates her mean daily commute.
Simple Random Sample
Census
Systematic Sample
Experiment
9
As sample size increases what happens to the sampling distribution?
stdev decreases
mean increases
mean decreases
stdev increases
10
Individuals split into groups, a few are randomly selected from each group. Which type?
Cluster Sample
Stratified Sample
Systematic Sample
Simple Random Sample
11
In a sample of 100 students, 14% are left handed. Construct a 95% confidence interval.
(0.05 , 0.23)
(0.07 , 0.21)
(0.02 , 0.25)
(0.10 , 0.18)
12
Which are both proportions??
μ and x-bar
p-hat and ρ
x-bar and p-hat
ρ and μ
13
Confidence interval is (3.54, 6.73) what's the margin of error?
5.135
6.73
1.595
3.54
14
When you reject the Ho you...
do not have evidence to support the Ho
do not have evidence to support the Ha
have evidence to support the Ha
have evidence to support the Ho
15
If P-value = 0.031 and α = 0.01 we should....
Make no decision
Fail to Reject the Ho
Reject the Ho
Accept the Ho
16
Which type of data: time spent on the time turner by Hermione
Discrete
Continuous
Bivariate
17
test with a mean of 65 and a standard deviation of 4. What's the z-score a score of 72?
2.13
1.75
7
-1.75
18
Compare the normal distributions A and B
Mean: A < B Stdev: A > B
Mean: A = B Stdev: A > B
Mean: A < B Stdev: A < B
Mean: A > B Stdev: A > B
19
If P-value = 0.031 and α = 0.10 we should....
Accept the Ho
Make no decision
Fail to Reject the Ho
Reject the Ho
20
What's the probability of at least one earthquake?
0.1
0.4
0.5
1
21
What's the IQR of this boxplot?
15
6
7
13
22
Which are both parameters??
ρ and μ
x-bar and p-hat
μ and x-bar
p-hat and ρ
23
You have a 1/14 chance of winning $10 & 13/14 chance of losing $1. What is the expected value?
- 0.21
- 1
0
0.13
24
X~N(100, 25), what percent of the data is between 50 and 150?
100%
68%
99.7%
95%
25
Which data type: which hogwarts house you are sorted into?
Categorical
Bivariate
Quantitative
26
If you flip a fair coin 144 times, how many times do you expect to flip heads?
84
72
144
12
27
Find P(Freshman | pizza)
3/10
10/20
3/50
3/20
28
Find P(burrito | sophomore)
11/30
30/11
6/11
6/30
29
Which r represents the strongest linear relationship?
r = 0.5
r = - 0.8
r = 0.7
r = - 0.2
30
Which measure of center is most affected by extreme values?
Median
Variance
Mean
Mode
31
Which symbol represents population mean?
μ
p-hat
ρ
x-bar
32
Which symbol represents sample proportion?
μ
ρ
p-hat
x-bar
33
Rejecting the Ho when the Ho is true
Type I error
Type III error
Type II error
Correct decision
34
Failing to reject the Ho when the Ho is false
Type I error
Type II error
Type III error
Correct decision
35
Confidence interval is (3.54, 6.73) what's the point estimate?
5.135
1.595
3.54
6.73
36
X~N(456, 34) what proportion of values are above 476?
0.278
0.268
0.731
0.722
37
Which are both statistics?
μ and x-bar
ρ and μ
x-bar and p-hat
p-hat and ρ
38
y-hat = 4.1 - 0.14(x), x=# credit hours, y-hat=predicted GPA. Find predicted GPA for 12 hours.
5.78
4.1
2.42
3.4
39
Individuals put into a line, every 31st person is surveyed. This is...
Stratified Sample
Cluster Sample
Simple Random Sample
Systematic Sample