stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
Mrs Stults Ap stats Flashcards | StudBud
Explore
/
Mrs Stults Ap stats
Mrs Stults Ap stats
16 terms
·
StudBud Administration
·
1 play
Ap stats review for anyone!
Flashcards
16 cards
F
Practice quiz
P
Host live
L
Questions
16
Answers
1
Which statistic is resistant to outliers?
B. Standard deviation
C. Range
A. Mean
D. Median
2
If P(A) = 0.6, P(B) = 0.5, and A and B are independent, what is P(A ∩ B)?
D. 1.1
C. 0.6
A. 0.1
B. 0.3
3
Given this histogram, what best describes the distribution?
A. Skewed left
C. Symmetric
D. Uniform
B. Skewed right
4
If a 95% confidence interval for a proportion is (0.23, 0.37), which of the following is true?
B. We are 95% confident the true proportion is between 0.23 and 0.37
C. The sample proportion is definitely in the interval
A. There is a 95% chance the proportion is 0.30
D. The interval is based on a 5% margin of error
5
Which of the following describes a voluntary response sample?
B. People choose to respond
A. Randomly chosen from a list
D. Selected by stratified sampling
C. All members of the population are surveyed
6
What is the name of a graph that displays the five-number summary?
B. Boxplot
C. Dotplot
D. Bar graph
A. Histogram
7
Who is your favorite Statistics teacher
A. Mrs. Stults
D. Dr Stults
A. Mr. Stults
C. Miss Stults
8
A school randomly selects 10 students from each grade. What sampling method is this?
D. Cluster sample
C. Stratified sample
A. Simple random sample
B. Systematic sample
9
Which of the following violates the conditions for a binomial setting?
B. Probability of success is constant
D. More than two outcomes per trial
A. Fixed number of trials
C. Trials are independent
10
What is the main purpose of blocking in an experiment?
C. To increase the sample size
A. To increase randomness
D. To select treatment levels
B. To control for variability
11
If the standard deviation is zero, what can we say about the data?
A. It is normally distributed
B. All values are the same
C. There is high variability
D. It must be skewed
12
A coin is flipped 3 times. What is the probability of getting exactly 2 heads?
B. 0.375
C. 0.365
D. 0.625
A. 0.25
13
What is the purpose of random assignment in an experiment?
B. To reduce sampling variability
C. To eliminate confounding variables
D. To reduce response bias
A. To get a larger sample
14
What does it mean if two variables are positively associated?
B. They are unrelated
C. As one increases, the other increases
D. Both are categorical
A. As one increases, the other decreases
15
True or False: The larger the sample, the smaller the margin of error (assuming all else constant).
True
False
16
What does a p-value represent in hypothesis testing?
B. Probability of getting a result this extreme or more, if the null is tru
A. Probability null is true
D. Type I error rate
C. Confidence level
