AP Statistics Chapter 6 Review

The count of the number of arrangements of x successes in n trials

What are the mean and standard deviation of 2X - 3Y

X takes a fixed set of possible values with gaps between them

What are the mean and standard deviation for X-Y

Equations for Large Counts

X and Y are random variables. Calculate the mean and standard deviation of X+Y

When is there an unknown number of trials

If μ_x=20;σ_x=4 , What is the new mean and standard deviation if you subtract 2 from every value?

Which is the equation for 10% condition due to sampling without replacement?

What happens when you double the values of a random variable with the following mean and standard deviation:μ=10,σ=3

For a random variable X+X and 2X have the same mean and standard deviation?

Continous random variable is when you can take any value in an interval on the number line

There are two outcome in a binomial setting

The number of times it takes to get success in a geometric setting

Large Count Condition allows binomial distribution to be approximated by Normal distribution?

How much the values of the variable vary from mean in many trials is what?

What is the shape of the distribution?

What is the expected value of the following?X=1, 0.45; X=2, 0.25; X=3, 0.18; X=4, 0.07;X=5, 0.05

Expected value is also known as

What is a random variable?

SRS stands for Simple Random Statistic

Which is NOT part of B.I.N.S

What is the name of a random variable distribution that gives its possible values and their probabilities

The weighted average of squared deviations