STATISTICS F/BUS.+ECON.(LL)-W/2 ACCESS
STATISTICS F/BUS.+ECON.(LL)-W/2 ACCESS
8th Edition
ISBN: 9780134382364
Author: NEWBOLD
Publisher: PEARSON
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Chapter 1, Problem 51E
To determine

Draw the histogram of hours for 20 students.

Expert Solution & Answer
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Explanation of Solution

Figure-1 illustrates the histogram of hours for 20 students as follows:

STATISTICS F/BUS.+ECON.(LL)-W/2 ACCESS, Chapter 1, Problem 51E

Stem-and-leaf display:

The stem-and-leaf display is an exploratory data analysis (EDA) that is an alternative method of histogram in which data are grouped according to their leading digits, it is called ‘stems’, and the final digits, called ‘leafs, are listed separately for each member of a class. Here, the leaves are displayed individually in the ascending order after each of the steams.

Table 1 indicates the stem-and-leaf display using the given data (Data file Sun).

Table -1
StemLeaf
24  
289 
30  
3669
404 
4568
502 
558 
62  
657 
73  
Economics Concept Introduction

Histogram: A histogram is a graph in which the vertical bars constructed on a horizontal line are marked off with intervals for the variable being displayed. 

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