Categorical data

In a post office, the mailboxes are numbered from 1 to 4,500. These numbers represent

Which of the following is a categorical variable?

Census refers to a(n)

Facts and figures that are collected, analyzed and summarized for presentation and interpretation are

The major applications of data mining have been made by companies with a strong _______ focus.

In a data set, the number of elements will always be the same as the number of

Which of the following is not an example of descriptive statistics?

Measurement of body temperature is an example of a variable that uses

Data measured on a nominal scale

Statistical studies in which researchers do not control variables of interest are _____ studies.

Statistical studies in which researchers control variables of interest are _____ studies.

The summaries of data, which may be tabular, graphical, or numerical, are referred to as _____ statistics.

The data measured on ordinal scale exhibits all the properties of data measured on

A population is

The type of analytics whose models yield a best course of action to take is _____ analytics.

Data dashboard is an analytical technique that falls in the category of _____ analytics.

Optimization models, which generate solutions that maximize or minimize some objective subject to a set of constraints, fall into the category of _____ analytics.

Simulation, which is the use of probability and statistical computer models to better understand risk, falls under the category of _____ analytics.

The largest experimental statistical study ever conducted is believed to be for

Cost of a theater ticket is an example of

Which of the following variables use the ratio scale of measurement?

Five hundred residents of a city with a population of 240,495 are polled to obtain information on voting intentions in an upcoming city election. The five hundred residents in this study is an example of a(n)

Statistical inference

In a sample of 400 students in a university, 80 or 20% are Business majors. Based on the above information, the school's paper reported that "20% of all the students at the university are Business majors." This report is an example of

Data are

Fifteen percent of the students in a school of Business Administration are majoring in Economics, 20% in Finance, 35% in Management, and 30% in Accounting. The graphical device(s) which can be used to present these data is (are)

A graphical device for depicting categorical data that have been summarized in a frequency distribution, relative frequency distribution, or percent frequency distribution is a

The above crosstabulation shows

A cumulative frequency distribution is

In a cumulative frequency distribution, the last class will always have a cumulative frequency equal to

A graphical tool typically associated with the display of key performance indicators is a

Which of the following is a graphical summary of a set of data in which each data value is represented by a dot above the axis?

Histograms based on data on housing prices and salaries typically are

The most common graphical presentation of quantitative data is a

Data that indicate how much or how many are known as

When the conclusions based upon the unaggregated data can be completely reversed if we look at the aggregated crosstabulation, the occurrence is known as

A display used to compare the frequency, relative frequency or percent frequency of two categorical variables is a

A box plot is a graphical representation of data that is based on

Statements about the proportion of data values that must be within a specified number of standard deviations of the mean can be made using

The coefficient of variation indicates how large the standard deviation is relative to the

The correlation coefficient ranges between

Positive values of covariance indicate

The percentage of data values that must be within one, two, and three standard deviations of the mean for data having a bell-shaped distribution can be determined using

The geometric mean of four observations is the

The interquartile range is

Generally, which one of the following is the least appropriate measure of central tendency for a data set that contains outliers?

μ is an example of a

If the data distribution is symmetric, the skewness is

Posterior probabilities are computed using

Of the last 100 customers entering a computer shop, 40 have purchased a computer. If the classical method for computing probability is used, the probability that the next customer will purchase a computer is

If A and B are independent events with P(A) = 0.4 and P(B) = 0.25, then P(A ∪ B) =

The symbol ∩ shows the

Posterior probabilities are _____ probabilities.

The multiplication law is potentially helpful when we are interested in computing the probability of

If X and Y are mutually exclusive events with P(A) = 0.295, P(B) = 0.32, then P(A | B) =

A graphical method of representing the sample points of an experiment is a

Cost of a theater ticket is an example of