Log out Go to App
Go to App

Learning Materials

Features

Discover

Chapter 1: Q 76. (page 49)

The rating service Arbitron asked adults who used several high-tech devices and services whether they “loved” using them. Below is a graph of the percent who said they did.

(a) Summarize what this graph tells you in a sentence or two.

(b) Would it be appropriate to make a pie chart of these data? Why or why not?

Short Answer

Expert verified

Part (a) IPod, Broadband and HDTV, which are newer technologies.

Cable TV and pay TV, which are older technologies.

Part (b) No, it would not be appropriate to make pie-chart of these data.

Step by step solution

01

Part (a) Step 1: Given information

Given:

02

Part (a) Step 2: Concept

Quantitative variables are measurements that are made up of numerical values.

03

Part (a) Step 3: Explanation

iPod, Broadband, and HDTV, which are a newer technology, are the most popular high-tech products or services. Cable TV and pay-TV, which are older technologies, are the least popular high-tech equipment or services.

04

Part (b) Step 1: Explanation

No, a pie chart of these data would not be acceptable because the data does not cover all of the groups that make up the entire. The parenting of people who utilise high-tech equipment and services is listed here, which refers to different ways rather than individual elements of a single total.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Start your free trial

Over 30 million students worldwide already upgrade their learning with Vaia!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

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.

What are all the values that a standard deviation sxcan possibly take?

(a)sx≥0

(b)sx>0

(c) 0≤sx≤1

(d) −1≤sx≤1

(e) Any number

Race and the death penalty Whether a convicted murderer gets the death penalty seems to be influenced by the race of the victim. Here are data on

326 cases in which the defendant was convicted of murder:

(a) Use these data to make a two-way table of the defendant’s race (white or black) versus the death penalty (yes or no).

(b) Show that Simpson’s paradox holds: a higher percent of white defendants are sentenced to death overall, but for both black and white victims a higher percent of black defendants are sentenced to death.

(c) Use the data to explain why the paradox holds in the language that a judge could understand.

Comparing AP scores The table below gives the distribution of grades earned by students taking the AP Calculus AB and AP Statistics exams in 2009

(a) Make an appropriate graphical display to compare the grade distributions for AP Calculus AB and AP Statistics.

(b) Write a few sentences comparing the two distributions of exam grades.

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. What individual does with the data set describe

b. Identification of the quantitative variables

c. describe the individual in a highlighted row
See all solutions

Recommended explanations on Math Textbooks

Logic and Functions

Read Explanation

Statistics

Read Explanation

Mechanics Maths

Read Explanation

Pure Maths

Read Explanation

Applied Mathematics

Read Explanation

Discrete Mathematics

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.

Sign-up for free