Statistics-CSA Review

In bivariate data analysis, identifying a relationship involves determining a positive or negative ____.

• association

• variable

• correlation

• dataset

• analysis

In an experiment, what type of variable is directly affected by changes in another variable?

• Bivariate

• Correlation

• Independent

• Univariate

• Dependent

Which Six Sigma tool is used to monitor process stability over time?

• Histogram

• Control chart

• Fishbone diagram

• Regression analysis

What is the purpose of descriptive statistics?

• To calculate probabilities

• To provide a detailed analysis

• To summarize and describe data

• To predict future trends

Looking at the data given for the Rating variable, what type of variable is being used?

• A continuous variable

• A discrete variable

• A qualitative variable

• A binary variable

Looking at the chart of qualitative variables below, what type of variable is 'Education'?

• Binary

• Ordinal

• Nominal

• Discrete

What are the two primary types of data used in statistics?

• discrete and continuous

• qualitative and quantitative

• dependent and independent

• nominal and interval

Sheila is a baker experimenting with a cake recipe. Specifically, she is monitoring how changes in the volume of cream affect the moistness of the cake. What kind of variable is the volume of cream, and why?

• it is a response variable, because it is a condition in the experiment that is being changed.

• it is the response variable, because it has an influence on the dependent variable

• it is an independent variable because it is a condition in the experiment that can be changed.

• it is an independent variable, because it can be divided infinitely

What type of question provides limited response options to participants?

• A restrictive question.

• A suggestive question.

• An unrepresentative question.

• A prejudiced question.

What term describes a sample that fails to include certain groups, potentially skewing research results?

• Exclusionary.

• Non-representative.

• Biased.

• Selective.