Unit 2 Describing Data

What type of analysis involves the study of a single variable?

• Univariate analysis

• Bivariate analysis

• Multivariate analysis

• Qualitative analysis

What type of variable can take on numerical values and has a meaningful order or ranking?

• Categorical

• Nominal

• Ordinal

• Discrete

A z-score of 0 indicates that the data point is:

• Equal to the mean

• One standard deviation above the mean

• One standard deviation below the mean

• Two standard deviations below the mean

Which type of data can be categorized but does not have a meaningful order or ranking?

• Quantitative

• Nominal

• Ordinal

• Continuous

If you are analyzing the relationship between two variables, what type of analysis are you conducting?

• Univariate analysis

• Bivariate analysis

• Multivariate analysis

• Qualitative analysis

A frequency table is most appropriate for:

• Describing variability

• Describing averages

• Describing distributions

• Describing correlations

Which of the following is a graphical representation of the distribution of a dataset?

• Table

• Histogram

• Variance

• Mean

The middle value in a sorted list of numbers is known as the:

• Median

• Mode

• Mean

• Range

What statistical technique is used to identify relationships between two or more variables?

• Histogram

• Regression analysis

• Mean

• Mode

What type of analysis involves the study of the simultaneous relationships between multiple variables?

• Univariate analysis

• Bivariate analysis

• Multivariate analysis

• Qualitative analysis