1.Methods for helping reduce the ____ inherent in decision-making
Certainly
Uncertainty
Validity
Certitude
2.What are data sets?
Collection of any number of related observations.
A collection of data
A single observation
Information before it is arranged and analyzed.
3.A set of measurements collected for a particular element is called an
Element
Variable
Observation
Data
4.What is a sample and parameter?
1. It consists of all the items or individuals you want to draw a conclusion about.
2. It is the portion of the population selected for analysis.
3. It is a numeric measure that describes a characteristic of a population.
4. It is a numeric measure that describes the characteristic of a sample.
2 and 3
1 and 4
1 and 3
2 and 4
5.Which of the following is not the benefit of the sample?
Less time
More expensive
The population is large
Less expensive
6.Example of secondary sources of data
Data obtained from a political survey
Data collected from an experiment
Analyzing the census data
Data was collected by visiting each participant and letting them fill out the survey
7.Which one of the following is not an example of a categorical variable?
Marital status
Political party
Weight
Eye color
8.What is an ordinal scale?
Data are labels or names used to identify an attribute of an element.
Data are labeled where the order or rank of the data is meaningful.
Data where the interval between observations is expressed in terms of a fixed unit of measure.
Data with no label.
9.The interval scale is under
1. Numeric
2. Non-numeric
3. Qualitative
4. Quantitative
1 and 3
1 and 4
2 and 3
2 and 4
10.Which of the following is not a part of consideration during data acquisition?
Time requirement
Cost of acquisition
Data error
Data size