AP Statistics: Name the Distribution!

Question 1

What term describes the process of selecting a line to best fit a scatterplot?

Accepted Answer

Linear regression

Question 2

Which of these is a *correct* way to phrase an alternate hypothesis for the chi-square independence test?

Accepted Answer

The population proportions for (etc.) are not all the same, At least one proportion differs from the other three

Question 3

What refers to using multiple repetitions of an experiment to obtain raw data for comparing to a known parameter?

Accepted Answer

Simulation

Question 4

What type of response bias is likely if you allow your class to vote on something without doing so anonymously?

Accepted Answer

Conformity bias

Question 5

BAD KOREAN JOKE! Who is the holiest Fayston faculty member?

Accepted Answer

Ms Hana

Question 6

What can be used to answer question 4 from the 2019 AP exam?

Accepted Answer

2-sample z-test, 2-sample z-intervals, Chi-square test of homogeneity

Question 7

How is standard error different from standard deviation?

Accepted Answer

It refers specifically to the SD of a sampling distribution

Question 8

Which type of sample is chosen if I split my school into grade levels, then select a fixed number of students per grade?

Accepted Answer

Stratified sampling

Question 9

Which two of these situations is an example of a matched-pairs experiment?

Accepted Answer

Random assignment based on shared characteristics to one of 2 groups, Two measurements on one individual, such as pre-treatment/post-treatment

Question 10

A team wants to find whether similar proportions of their peers complete homework based on their grade level.

Accepted Answer

Chi-square homogeneity test

Question 11

What formula is used to determine whether a point is an outlier?

Accepted Answer

Lower: Q1 - 1.5 IQR

Question 12

What is the list of all possible outcomes of an experiment called?

Accepted Answer

Sample space

Question 13

Create a range of values likely to contain the mean difference between SAT scores of those who did and didn't prep.

Accepted Answer

Two-sample t-interval

Question 14

Which would be an appropriate alternate hypothesis?

Accepted Answer

p14 < p17, p14 - p17 < 0

Question 15

Approximately what percent of scores are within 2 standard deviations of the mean in a normal distribution?

Accepted Answer

Actually, 95% technically refers to 1.96 deviations..., 95%

Question 16

Which term describes an experiment with a fixed number of n trials, in which you seek the probability of "r" successes?

Accepted Answer

Binomial

Question 17

Fayston wants to determine whether the mean MAP score for its math students is greater than the median.

Accepted Answer

Use a one-sample z-test

Question 18

What would you use to handle question 2 from 2017?

Accepted Answer

One-sample z-interval

Question 19

An unintended factor that could affect the outcome of an experiment is called...

Accepted Answer

... a confounding variable

Question 20

What is conditional probability?

Accepted Answer

The likelihood of an occurrence, given that something else already occurred, \left(P\left(A\right|B\right)=\frac{P\left(A∩B\right)}{P\left(B\right)}

Question 21

What process is used to find the first quartile?

Accepted Answer

Find the median of the lower half of the distribution

Question 22

Identify the correct test procedure for #5.

Accepted Answer

Chi-square independence test

Question 23

BAD KOREAN JOKE! What can cows study at university?

Accepted Answer

Acting

Question 24

What does independent actually mean?

Accepted Answer

A relationship in which one outcome does not affect the other

Question 25

Which represents part of the margin of error formula for at least one type of situation?

Accepted Answer

z\cdot\sqrt{\frac{p\left(1-p\right)}{n}}

Question 26

What distributions on this list require degrees of freedom?

Accepted Answer

Chi-square distribution, Student's t distribution

Question 27

Which of these is a *correct* way to phrase a null hypothesis for the chi-square independence test?

Accepted Answer

p1 = p2 = p3 = p4, where p1 is the population proportion of (etc.)

Question 28

What formula gives you the interquartile range?

Accepted Answer

Q3 - Q1

Question 29

What was the very first vocab word we went over this year?

Accepted Answer

Parameter, Statistic

Question 30

What term describes the totals of columns and rows in a two-way table?

Accepted Answer

Margins

Question 31

Name an appropriate null hypothesis for question 4.

Accepted Answer

p17 - p14 = 0, p17 = p14

AP Statistics: Name the Distribution!

Questions 31

AP Statistics: Name the Distribution!

Questions 31