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Organizing Data
Data Relationships
Producing Data & Experiments
Probability & Distributions
Confidence Intervals
100
This measure of center is more resistant to outliers than the mean.
What is the median?
100
observed y - predicted y
What is the residual?
100
This phrase is used to describe an observed effect so large that it would rarely occur by chance.
What is statistically significant?
100
This type of random variable requires a fixed number of trials.
What is a binomial random variable?
100

The type of interval used to estimate the mean of a single population

What is a one-sample t interval?

200
To calculate, subtract the mean of the distribution from the observed x, then divide by the standard deviation.
What is the z-score (or standardized value)?
200
Measures the direction and strength of a linear relationship between two quantitative variables.
What is correlation (or r)?
200
randInt(1,9,3)
What is the calculator command for generating 3 random numbers from 1 to 9?
200
The type of variable where the probability distribution assigns probability as the area under the density curve above a specific interval.
What is a continuous random variable?
200

The formula to calculate the one-sample z interval.

What is phat +/- z* sqrt(phat (1-phat)/n)?

300
This rule helps to determine if data is normally distributed by checking the number of observations within each interval.
What is the 68-95-99.7 rule?
300
The fraction of the variables in the values of y that is explained by the LSR of y on x.
What is the coefficient of determination (or r squared)?
300
This experimental design involves the random assignment of units to treatments which are carried out separately within each group of units known to be similar in some way that is expected to affect the responses.
What is block design?
300
Events that have no outcomes in common and can never occur simultaneously, for which the addition rule is used.
What are disjoint events (or mutually exclusive events)?
300

The conditions to use this interval include the large counts condition and the 10% rule.

What is a one-sample z interval for a population proportion.

400
The square of the standard deviation.
What is the variance?
400

This is affected by adding or subtracting a constant from a random variable

What is the measure of center?

400
The 3 basic principles of experimental design.
What are control, randomize, and replicate?
400
The condition involving the population size that must be satisfied to use sigma divided by the square root of n as the standard deviation of a sampling distribution.
What is 'the population is at least 10 times the sample size'?
400

Three conditions to be verified for estimating a population mean.

What are the 10% rule, random sampling, and normal distribution/large sample size?

500
This calculator command can be used to find the area under a normal distribution and above an interval.
What is normalcdf?
500

An outlier in this direction will have a large residual.

What is the y direction?

500

The four step process for how to organize a statistics problem

What is state, plan, do, conclude?

500

The formula to determine the variance for a discrete random variable with three possible values.

What is (sigmax)2= (x1-mu)2(p1) + (x2-mu)2(p2) + (x3-mu)2(p3)?

500

 xˉ +/- t*SE 

What is the confidence interval for the one sample t interval for a population mean?