Exam 1: Data and Statistics

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

In observational studies, the variable of interest

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

The owner of a factory regularly requests a graphical summary of all employees' salaries. The graphical summary of salaries is an example of _____ statistics.

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

The Department of Transportation of a city has calculated that on the average there are 17 accidents per day. The average number of accidents is an example of

The subject of data mining deals with

The collection of all elements of interest in a study is

The set of analytical techniques that yield a best course of action is _____ analytics.

In experimental studies, the variable of interest

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)

Data dash-board is an analytical technique that falls in the category of _____ analytics.

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

The measurement scale suitable for quantitative data is _____ scale.

How many scales of measurement exist?

A portion selected to represent the whole is called a

Arithmetic operations provide meaningful results for variables that

A restaurant asks their customers to fill out a questionnaire indicating whether their service was excellent, very good, good, or poor. The rating scale used is an example of the _____ scale.

Quantitative data

All the data collected in a particular study are referred to as the