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Chapter 1: Q. 4 (page 7)

A class survey Here is a small part of the data set that describes the students in an AP Statistics class. The data come from anonymous responses to a questionnaire filled out on the first day of class.

a. Description of a data set

b. Identification of Quantitative variables

c. Description of an individual in a highlighted row

Short Answer

Expert verified

The data set is a piece of information and quantitative variables are the height and race of n individual.

Step by step solution

01

Discussion of the data set 

Data set are a piece of information about a particular individual.

02

Identification of Quantitative variables

The quantitative variables are the height, race of a particular individual and all these things of an individual can be measured in a certain way.

03

Description of the individual

It also deals with the category of the individual whether the person is quantitative or not.

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Most popular questions from this chapter

Going to school Students in a high school statistics class were given data about the primary method of transportation to school for a group of 30 students. They produced the pictograph shown.

(a) How is this graph misleading?

(b) Make a new graph that isn’t misleading.

Ranking colleges Popular magazines rank colleges and universities on their “academic quality” in serving undergraduate students. Describe two categorical variables and two quantitative variables that you might record for each student. Give the units of measurement for the quantitative variables.

Which of the following statements about this distribution is not correct?

(a) The histogram is right-skewed.

(b) The median is less than \(20

(c) The IQR is \)35

(d) The mean is greater than the median.

(e) The histogram is unimodal.

You record the age, marital status, and earned income of a sample of 1463 women. The number and type of variables you have recorded is

(a) 3 quantitative, 0 categorical

(b) 4 quantitative, 0 categorical

(c) 3 quantitative, 1 categorical

(d) 2 quantitative, 1 categorical

(e) 2 quantitative, 2 categorical

Phone numbers the dot-plot below displays the last digit of 100phone numbers chosen at random from a phone book. Describe the shape of the distribution. Does this shape make sense to you? Explain.
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