The scale of measurement for a variable if the data demonstrate all the properties of interval data and the ratio of two values is meaningful.
What is a ratio scale?
100
The scale of measurement for a variable if the data demonstrate the properties of ordinal data and the interval between values is expressed in terms of a fixed unit of measure.
What is an interval scale?
100
An exploratory data analysis technique that simultaneously rank orders quantitative data and provides insight about the shape of the distribution.
What is a stem-and-leaf display?
100
Given the numbers: 1,4,3,6,9,5,2. The answer is 4.28
What is the mean?
100
Given the numbers: 1,4,3,6,9,5,2. The number 6
What is the 75th quartile?
200
The entities on which data are collected.
What are the elements?
200
Data collected at the same or approximately the same point in time.
What is cross-sectional data?
200
A tabular summary of quantitative data showing the percentage of data values that are less than or equal to the upper class limit of each class.
What is a cumulative percent frequency distribution?
200
Given the numbers: 1,4,3,6,9,5,2. The number 7.24
What is the sample variance?
200
Given the numbers: 1,4,3,6,9,5,2. The number 4.
What is the interquartile range?
300
A characteristic of interest for the elements
What are the variables?
300
A subset of the population
What is a sample?
300
A tabular summary of data for two variables. The classes for one variable are represented by the rows; the classes for the other variable are represented by the columns
What is a crosstabulation?
300
Given the numbers: 1,4,3,6,9,5,2. The number 8.
What is the range?
300
A theorem that can be used to make statements about the proportion of data values that must be within a specified number of standard deviations of the mean.
What is Chebyshev's theorem?
400
The scale of measurement for a variable when the data are labels or names used to identify an attribute of an element.
What is the nominal scale?
400
Labels or names used to identify categories of like items
What is a categorical data?
400
A graphical presentation of the relationship between two quantitative variables. One variable is shown on the horizontal axis and the other variable is shown on the vertical axis.
What is a scatter diagram.
400
Given the numbers: 1,4,3,6,9,5,2. The number 2.69.
What is the sample standard deviation?
400
X values: 1,4,3,6,9,5,2.
y values: 12,10,18,15,22,19,11
The number: 8.74
What is the covariance?
500
The process of using data obtained from a sample to make estimates or test hypotheses about the characteristics of a population.
What is statistical inference?
500
A tabular summary of data showing the fraction or proportion of data values in each of several non-overlapping classes.
What is a relative frequency distribution?
500
A graph of a cumulative distribution
What is an ogive?
500
Given the numbers: 1,4,3,6,9,5,2. The number 2.
What is the first quartile?
500
X values: 1,4,3,6,9,5,2.
y values: 12,10,18,15,22,19,11
The number: +.716