conditions/distributions
The population must be at least this much bigger than the sample size in order to be "close enough" on independence.
What is 10 times?
This is the sum of all of the probabilities in a sample space.
What is 1?
The mean of -3X, when X~N(mux, sigmax)
What is -3*mux?
For a random variable X with mean mux, this is the mean of X + X.
What is 2mux?
This is what you call separating your population based on a common variable before sampling.
What is stratification?
We are allowed to approximate this distribution if the expected number of successes and failures is large enough.
What is normal?
1-P(none)
What is P(at least 1)?
The standard deviation of X + 4 when X~N(mux, sigmax)
What is sigmax?
For random variables X and Y with means of mux and muy respectively, this is the mean of X - Y.
What is mux - muy?
This is when the outcome of one variable does not change the probability of another variable.
What is independent?
The minimum number for np and n(1-p) in order to use Mrs. Righter's most fave distribution.
What is 10?
The probability for success and the sample size, respectively.
(looking for the variable names)
What are p and n?
The mean of 2X + 3 when X~N(5,1).
What is 13?
For random variables X and Y, with means of 5 and 2 respectively, this is the mean of X - 3Y + 2.
What is 1?
This is the number of standard deviations from the mean.
What is the Z-score?
BINS stands for this.
Binary
Independent
N is fixed
Success probability Same for all
The result when you multiply each value of x by its probability and add them all together.
What is the expected value of a discrete probability distribution?
The standard deviation of 1/4 X when X~Unif(8,2).
What is 1/2?
For random variables X and Y with standard deviations sigmax and sigmay respectively, this is the standard deviation of X + Y.
What is the square root of the sum of the squared sigmas?
This is a measure of spread that tells us the average distance from the mean.
What is standard deviation?
The name of the distribution when the random variable is the number of trials and the number of successes is set at 1.
What is the geometric distribution?
The formula for P(X=x) when X~Bin(n,p)
What is nCr(n, x)*p^x*(1-p)^(n-x)?
The standard deviation of 0.3X - 1.7 when
X~Poi(16.3, 0.3)
What is 0.09?
For random variables X and Y with standard deviations sigmax and sigmay respectively, this is the standard deviation of 2X - Y.
What is the square root of (4sigmax2 + sigmay2)?
When you put all the values of a dataset in order and find the middle value(s).
What is the median?