Middles
Variance
General
Basics
Miscellaneous
100
mean
What is the arithmetic average.
100
range
What statistic subtracts the low score from the high score to show variability.
100
systematic error.
What is bias.
100
Begin calculating inside parentheses, then move outside of them.
What is the order of operations.
100
The "lowest" form of measurement; categorizes rather than measures data.
What is nominal data.
200
mode
What is the most frequently occurring category?
200
The range.
What measure of variability uses only two data points?
200
A number that describes some aspect of a population.
What is a parameter.
200
Sum a set of scores and then divide by the number of cases.
What is the mean.
200
Discrete level of measurement that allows categories to be arranged by some rudimentary metric.
What is ordinal.
300
median
What is the point that cuts a set of scores in half>
300
sum of the squared distances of a set of scores from the mean of the scores
What is sum of squares
300
Used to make inferences about characteristics of a population.
What is a sample.
300
Takes on different values
What is a variable.
300
Measurement level where zero has meaning.
What is ratio data.
400
mean
What is the measure of central tendency that is most sensitive to extreme scores?
400
Provides a measure of the standard or “average” distance from the mean.
What is the standard deviation.
400
Considered to be a relatively crude measure of variability.
What is the range.
400
A number calculated from sample data.
What is a statistic?
400
What is the first step to be performed when computing Σ(X – 2)
What is subtraction.
500
median
What value has exactly half of the scores above it?
500
The sum of the squared distances of each score from the mean.
What is the sum of squares.
500
Divides the sum of squares by n
What is the variance.
500
A sample and a population.
What is the same as the relationship between a statistic and a parameter?
500
What is the value of ΣX + 1 for the scores 1, 0, 2, 4?
What is 8?
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