Statistics and Probability

Statistics is best described as:

• A way to manipulate numbers for specific outcomes

• The science of collecting, analyzing, interpreting, and presenting data

• A method to solve mathematical equations

• A process of categorizing numbers

The main goal of descriptive statistics is to:

• Summarize and organize data

• Predict outcomes based on a sample

• Arrange numbers in order of size

• Classify categories of information

Which type of statistics focuses on using a sample to make predictions about a population?

• Descriptive statistics

• Inferential statistics

• Nominal statistics

• Observational statistics

Data that consists of measurable numbers, such as height or weight, is called:

• Qualitative

• Ordinal

• Quantitative

• Nominal

Eye color or blood type are examples of:

• Qualitative data

• Quantitative data

• Ratio data

• Interval data

Data that can only be categorized and has no meaningful order is known as:

• Interval

• Ratio

• Ordinal

• Nominal

Rankings, such as 1st, 2nd, and 3rd place, are classified as:

• Nominal data

• Ordinal data

• Ratio data

• Interval data

Temperature measured in Celsius, where there is no true zero, is an example of:

• Ratio data

• Nominal data

• Ordinal data

• Interval data

Data with a true zero, such as weight or height, falls under which category?

• Interval data

• Nominal data

• Ordinal data

• Ratio data

The mean of a dataset represents:

• The average value

• The middle value

• The most frequent value

• The largest minus the smallest value