Stats/Methods I

JEOPARDY

JeopardyCorrelation Regression Z-Scores Probability Surprise

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Correlation--$100

When two variables tend to move in the same direction

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Correlation--$200

A perfect correlation is indicated by a correlation coefficient of

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Correlation--$300

On a scatterplot, a negative correlation looks like this

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Correlation--$400

Compute this to determine whether a consistent relationship exists between two rank-order measures.

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Correlation--$500

Conceptually, the Pearson correlation coefficient is computed by dividing _________ by _________.

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Regression--$100

When drawing the regression line, what is the minimum number of points you must compute and plot?

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Regression--$200

In the regression equation, “a” stands for __________.

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Regression--$300

In the regression equation, a negative _____ means that Y decreases when X increases.

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Regression--$400

In general, a linear relationship between x and y can be expressed by this equation

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Regression--$500

The variable you will use to make predictions goes on the __axis and the variable you’re interested in predicting goes on the __axis.

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Z-Scores--$100

The z-score that would indicate a score located 2 standard deviation units below the mean.

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Z-Scores--$200

If a person earns a score that is equal to the population mean, that person’s z-score will be ___.

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Z-Scores--$300

The distribution of z-scores always has a standard deviation of ___.

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Z-Scores--$400

The two pieces of population information you need in order to transform a raw score into a z-score.

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Z-Scores--$500

If the original distribution is negatively skewed, the shape of the distribution after a z-score transformation will be ___________.

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Probability--$100

In general, the probability of A is computed by taking __________ and dividing by ________.

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Probability--$200

For the definition of probability to be accurate, the outcomes must be obtained by a process called ___________.

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Probability--$300

Provides a complete listing of z-scores and their corresponding proportions of the normal distribution.

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Probability--$400

The _____ always corresponds to the larger part of the distribution, whether it is on the right-hand side or the left-hand side of the distribution.

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Probability--$500

When finding the ______ for a particular score, we are always looking for the proportion of the distribution to the _____ of the x value.

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Surprise--$100

In a binomial situation, if p = .75, then q = ___.

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Surprise--$200

Another name for a non-directional test.

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Surprise--$300

Gives the proportion of variability in y that can be explained by the variability in x.

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Surprise--$400

The binomial distribution is always a _____ histogram,while the normal distribution is a ________, smooth curve.

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Surprise--$500

When ___ and ___ are both at least 10, the binomial distribution is closely approximated by a normal distribution.

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Correlation--$100

A: What is a positive correlation?

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Correlation--$200

A: What is 1 (positive & negative)?

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Correlation--$300

A: What is an envelope moving down from left to right?

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Correlation--$400

A: What is the Spearman correlation?

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Correlation--$500

A: What isDegree to which x & Y vary togetherDegree to which x and y vary separately

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Regression--$100

A: What is 2?

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Regression--$200

A: What is the y-intercept?

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Regression--$300

A: What is slope?

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Regression--$400

A: What is y predicted=bx+a ?

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Regression--$500

A: What is x and y (in that order)?

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Z-Scores--$100

A: What is z = -2.0 ?

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Z-Scores--$200

A: What is z = 0.00 ?

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Z-Scores--$300

A: What is 1?

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Z-Scores--$400

A: What are the population mean and the population standard deviation?

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Z-Scores--$500

A: What is the same—negatively skewed?

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Probability--$100

A: What is # of outcomes classified as Atotal # of possible outcomes

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Probability--$200

A: What is random sampling?

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Probability--$300

A: What is the unit normal table?

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Probability--$400

A: What is the body?

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Probability--$500

A: What is the percentile rank and left?Back to board

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A: What is .25?

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Surprise--$200

A: What is a two-tailed test?

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A: What is the coefficient of determination (r2 )?

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Surprise--$400

A: What is discrete and continuous?

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Surprise--$500

A: What is (p)(n) and (q)(n)?

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