Exam 1: Data and Statistics

A characteristic of interest for the elements is called a

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

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

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)

Which of the following is a categorical variable?

The process of analyzing sample data in order to draw conclusions about the characteristics of a population is called

On a street, the houses are numbered from 300 to 450.The house numbers are examples of _____ data.

The collection of all elements of interest in a study is

The scale of measurement that is used to rank order the observation for a variable is called the _____ scale.

The set of measurements collected for a particular element are called

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

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

In a sample of 1,600 registered voters, 912 or 57% approve of the way the President is doing his job.The 57% approval is an example of

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

In a questionnaire, respondents are asked to mark their marital status as single, married, divorced, or widowed.Marital status is an example of a(n) _____ variable.

The sample size

Dr.Kurt Thearling, a leading practitioner in the field, defines data mining as "the _____ extraction of _____ information from databases."

The subject of data mining deals with

A population is

In observational studies, the variable of interest