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Organizing Data
Data Relationships
Producing Data & Experiments
Probability & Distributions
100
This measure of center is more resistant to outliers than the mean.
What is the median?
100

How do you calculate the residual?

actual - predicted

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?
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

This experimental design has every participant do both treatments, in a random order.

What is matched pairs experimental design?

200
What is the key word in a problem that tells you to use pdf instead of cdf?

exactly

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

____% of the variation in (y) can be explained by the linear relationship with (x)

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

The increase in the y-variable when the x-variable increases by 1.

slope

400
When should you use a 2-Sample Z test?

NEVER

400

What is the sample size condition for sampling distributions of sample proportions?

np and nq both greater than 10

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

The y-variable when the x-variable is 0.

The y-intercept

500

This sampling method separates individuals into different groups based on some characteristic, then samples some of each.

What is stratified? 

500

How many pets does Ms. Anker have, and what type of animal(s) are they?

one dog