Chapter 1 SB

Which of the following is the best definition of a statistical sample?

A portion, or part of the population of interest.

Select all that apply Identify all of the following items which are quantitative variables.

The miles per gallon for a particular model of car. The weight of a Siamese cat.

Which of the following are discrete variables? Choose all that apply.

The number of cars for sale on a used car lot. The number of customers using an ATM on a given day.

Select all that apply Identify all of the following items which are qualitative variables.

The species of trees in a park. A person's favorite food type. The colors in a package of M&M's.

Select all that apply Identify all of the following items which are quantitative variables.

The weight of a Siamese cat. The miles per gallon for a particular model of car.

True or false: The primary purpose of statistics is to present numerical data.

False

Which of the following are attributes of a continuous quantitative variable? Choose all that apply.

It can take on any value within a range of values. It is typically the result of measuring something. There are no required gaps between values.

What is descriptive statistics?

Methods of organizing, summarizing, and presenting data in an informative way.

What level of data is represented by the genres of music played by different radio stations?

Nominal

Match the following levels of data to the description of the observations.

Nominal ------- The types of fruit in a grocery store. Ordinal -------- Movie ratings. Interval -------- Shoe sizes. Ratio ----------- Stock prices.

What level of data is represented by the fire risk (Low, Moderate, High or Severe) today in Arapahoe National Forest?

Ordinal

Which of the following is not part of the science of statistics?

Choosing data that supports your conclusion.

Which of the following are examples of descriptive statistics? Select all that apply.

Creating a pie chart to show majors of students in your business statistics class. Calculating summary measures of the prices of houses sold in Las Vegas in January.

Identify which one of the following is a continuous quantitative variable.

The average weight of apples in a box at the market.