Probability
Given two events, E and F, such that P(E)=.34, P(F)=.45, and P(E or P)= .637, then the two events are
What is independent but not mutually exclusive.
The use of a regression line for prediction far outside the interval of values of the explanatory variable x used to obtain the line. Such predictions are often not accurate.
What is extrapolation
Sampling error occurs when
What is when a sample statistic is used to estimate a population parameter
If you take a sample of who prefers coke or Pepsi from everyone walking out of the library through out the day, what kind of sampling bias would this be
What is convenience sampling bias
Which two math teachers have been teaching at SSHS the longest?
Mr. Rubenfeld and Mr. Paul
If P(A)=.25 and P(B)=.34, what is P(A and B) if A and B are independent
What is .505
A variable that is not among the explanatory or response variables in a study but that may influence the response variable.
What is a lurking variable
Which of the following is most important in minimizing the placebo effect
What is blinding and a control
If you're sampling a neighborhood for which tv provider they have and 12% of your samples don't reply, what kind of sampling bias is this
What is non response bias
What year did Red and Blue start?
1916
You win a game if you flip a coin with heads coming up exactly 50 percent of the tosses. What is the probability you win the game (if you toss the coin 3 times)?
Zero!
What does the y-intercept represent in a linear regression equation?
The value of the response variable when the explanatory variable is zero.
What is most useful in establishing cause and effect relationships
What is a controlled experiment
If we are taking a sample of whether or not a student is enrolled in a language class, but we only sample from people sitting in this hallway, what kind of sampling bias is this
What is under coverage bias
What SSHS math teacher also teaches science classes?
Mrs. Coleman
An insurance company charges $900 annually for auto policies for teens. The policy specifies the company will pay $1500 for a minor accident and $8000 for a major accident. If the probability of a teenager having a minor accident during the year is .15 and of having a major accident is .5, how much can the insurance company expect to make on 10 policies.
What is $2750
Measures the direction and strength of the linear relationship between two quantitative variables
What is correlation
A newspaper advice columnist asks her readers if they would have married their current spouse if they had to do it over again. 25000 readers wrote in and 80% said no. What does this show
What is the survey is meaningless because of voluntary response bias
If we send out a survey to determine what percent of people are voting for a certain mayor in a city but included in the survey you used negative words to describe the opposing senator then what type of sampling bias is that
What is wording of question bias
If the standard deviation of a set of observations is 0, you can conclude
What is that all observations are the same value
If I flip a coin, then roll a die, then select a card from a standard deck, how many elements are in my sample space?
624
An observation that lies outside the overall pattern of the other observations.
What is an outlier
A sales representative wishes to survey her client base of 47 companies. She has 47 business cards from her contacts in the companies and decides to drop them all in a small box, mix them up, and reach in to pick 5 cards for her sample. This is and example of which type of sampling
What is a simple random sample
If we are trying to sample SSHS students for if students shower in the morning or at night but we only interview people who enter the school by student parking then this is what type of bias
What is undercoverage
What is your favorite class this year?
AP Statistics