Data Analysis
Describing Relationships
Probability
Sampling Distributions
Testing Claims
100
This tells us what values the variable takes and how often it takes these values
What is distribution?
100
It measures the strength and association between two linear variables, x and y.
What is correlation?
100
This says that the proportion of times that a particular outcome occurs in many repetitions will approach a single number.
What is the law of large numbers?
100
This describes a characteristic of an entire population.
What is a parameter?
100
When you fail to reject the null hypothesis, when the alternative hypothesis is true.
What is a Type 2 error?
200
The distribution of values of a variable among all individuals described by a two-way table.
What is marginal distribution?
200
A straight line that describes how a response variable changes as an explanatory variable changes
What is a regression line?
200
The chance that an event happen, if another has already happened, which is derived from P(A and B) / P(B)
What is conditional probability?
200
This is a statistic where the mean of its sampling distribution is not equal to the true value of the parameter.
What is a biased estimator?
200
Significance level, effect size, and the desired power of the test are 3 factors that can influence this.
What is the sample size requirement?
300
The three types of graphs used to describe quantitative variables.
What are dotplots, stemplots, and histograms?
300
When one divides a population into groups of individuals that are located near each other and randomly selects some of these groups in order to obtain a random sample.
What is a cluster sample?
300
The occasion in which we can use the formula for probability P(A and B) = P(A) x P(B)
When are 2 events independent?
300
This says that when n is large, the sampling distribution of the sample mean is approximately normal.
What is the Central Limit Theorem? (CLT)
300
The probability that the test will reject the null hypothesis at a chosen significance level (alpha) when the specified alternative value of the parameter is true.
What is the power of a test?
400
The rule that describes a Normal distribution by showing what percent of observations lay within 1, 2, and 3 standard deviations of the mean.
What is the 68-95-99.7 rule?
400
A common form of blocking for comparing two treatments where a subject receives both treatments in a random order.
What is a matched pairs designs?
400
The occasion in which we sue the formula P(A or B) = P(A) + P(B).
When are 2 events mutually exclusive (or disjoint)?
400
These are the conditions in order to use a Normal distribution to calculate approximate means for events involving x-bar and meet the Normal/Large sample condition.
What are a normal population distribution or n is greater than or equal to 30?
400
The probability that the statistic will take a value at least as extreme as the observed result in the direction specified by the alternative hypothesis.
What is the P-value?
500
If the class average on a test is Normal and the mean score was 82.5 with a standard deviation of 5.3 and a student scored a 93 on the test, this is the z-score.
What is 1.98?
500
If the correlation is .82, then this is the coefficient determination.
What is .646?
500
The probability that you pull 3 face cards in a row out of a normal deck of 52 cards, which include 12 face cards.
What is .012?
500
This can reduce the variability of an estimate of the proportion of a population.
What is increasing sample size?
500
The z-score when you have a random sample of 100 students and 59 of them vote for candidate A, with the null hypothesis being p=.5
What is z=1.8?
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