Lean Six Sigma Green Belt Training - What is Statistics?

The use of graphical and numerical methods to organize, summarize and present data in a meaningful way for the purpose of making more informed decisions is known as...

Descriptive Statistics.

The two main branches of statistics are known as...

Descriptive and Inferential.

Which one of the following describes two classifications of quantitative data?

Discrete and Continuous

Using information gathered from sample data to make estimates, predictions, or other generalizations about a larger set of data called a population is known as...

Inferential Statistics.

Which type of data is not measured on a numerical scale?

Qualitative

The types of data used in statistics are...

Qualitative and Quantitative.

The term that best decribes the average number of cell phones owned by 100 households in the United States is...

Sample Statistic.

Which of the following variables is quantitative?

Square footage of a residential home

A polling service wants to conduct a survey of voter preferences within a city. The population of almost all of the city comprises six ethnic groups. The polling service wants to ensure that each of the six ethnic groups is well represented in the sample so the polling service groups them into their own subgroup before sampling. Which type of sampling technique was used in the survey?

Stratified sampling

A sampling method that uses a rule or pattern to select elements from the population to form the sample is known as...

Systematic Sampling.

A characteristic on which the elements of a population or sample differ from each other is a...

Variable.

A count or measurement of the entire population is known as...

a census.

Information collected and evaluated that we use to make conclusions is called...

data

A collection of objects or individuals with at least one characteristic in common is called a...

population.