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Chapter 2: Q.1 (page 125)

For each of the following data sets, create a stem plot and identify any outliers.

The miles per gallon rating for 30 cars are shown below (lowest to highest).19,19,19,20,21,21,25,25,25,26,26,28,29,31,31,32,32,33,34,35,36,37,37,38,38,38,38,41,43,43

Short Answer

Expert verified

The stem plot of data is

Step by step solution

01

Content Introduction

A stem and leaf plot divides data into stems (the greatest digit) and leaves (the lowest digit) (the smallest digits). Stem-and-leaf diagrams are excellent for illustrating the relative density and form of data, providing a fast summary of the distribution to the reader. They keep (most) of the raw numerical data, which is typically in great condition. They can also be used to find the mode and identify outliers.

02

Content Explanation

The data is divided into 30points and utilized to create stem and leaf plot.

The stem and leaf plot shows a summary of the data and allows us to immediately examine the distribution's form as well as which areas of the data are frequently used.

The data stem plot is

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Most popular questions from this chapter

Use the following information to answer the next three exercises: The following data show the lengths of boats moored in a marina. The data are ordered from smallest to largest:

16;17;19;20;20;21;23;24;25;25;25;26;26;27;27;27;28;29;30;32;33;33;34;35;37;39;40

Identify the median

Use the following information to answer the next three exercises: The following data show the lengths of boats moored in a marina. The data are ordered from smallest to largest:

16;17;19;20;20;21;23;24;25;25;25;26;26;27;27;27;28;29;30;32;33;33;34;35;37;39;40

Calculate the mean

The number of books checked out from the library from 25students are as follows:

0;0;0;1;2;3;3;4;4;5;5;7;7;7;7;8;8;8;9;10;10;11;11;12;12

Find the mode.

Use the following information to answer the next three exercises: The following data show the lengths of boats moored in a marina. The data are ordered from smallest to largest:

16;17;19;20;20;21;23;24;25;25;25;26;26;27;27;27;28;29;30;32;33;33;34;35;37;39;40

Identify the mode

Maris conducted a study on the effect that playing video games has on memory recall. As part of her study, she compiled the following data:

What is the best estimate for the mean number of hours spent playing video games?
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