Stats basics
The shape of a distribution with two peaks
What is bimodal?
The area underneath a density curve
What is 1?
The square root of r squared.
What is correlation?
A study where treatment is imposed
What is an experiment?
The sum of a legitimate probability model
What is 1?
In a skewed distribution, the measure of center that gets pulled towards the tail.
What is the mean?
The percentages of 1, 2, and 3 standard deviations in a normal distribution.
What is 68-95-99.7%/
Correlation matches the sign of this part of the linear function.
What is slope?
Bias that arises from people choosing to avoid or hang up on a survey.
What is nonresponse bias?
a synonym for disjoint
What is mutually exclusive?
The parts of a five number summary
What is minimum, Q1, median, Q3, and maximum/
The mean and standard deviation of a standard normal distribution
What is 0 and 1?
For every increase in 1 x value, the y value increases or decreases by this part of the linear function.
What is slope?
A survey sampling method where an SRS of a few is taken from several homogeneous groups.
What is stratified sampling?
The formula for the union of two events?
what is P(a) + P(B) - P(AnB)?
Two graphs that can be used for categorical data
What is a bar graph and pie chart?
a density curve where every value occurs the same amount of times
what is uniform
The percent of variation in y that is accounted for by the regression line relating x to y.
What is r squared?
A block design of size two, where one part gets treatment A and the other gets treatment B.
What is matched pairs?
The distribution used to describe the odds of getting exactly 4 even numbers from rolling a die ten times.
What is binomial?
The outlier rule
What is 1.5 IQRs from Q1 or Q3?
The area under a standard normal curve greater than a zscore of 2.
.025
The acronym and words used to describe a scatterplot
What is PODS- pattern, outlier, direction, and strength?
The sampling methos where you start at a random number then select every "n"th individual in line
What is systematic
The formula for the standard deviation for adding or subtracting two random variables