5. What percentage of the children watched TV between 20 and 30 hours per week? 6. The Mode is the most frequently occurring score. What is the Mode in Figure 1?
5. What percentage of the children watched TV between 20 and 30 hours per week? 6. The Mode is the most frequently occurring score. What is the Mode in Figure 1?
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:Creating graphs gives you a picture of your data. In our visual-oriented world, graphing
data is one way of "letting the statistics speak for themselves." The proper choice of
graph depends on the nature of the variable. Most graphs are pie charts, bar graphs,
histograms, frequency polygons or timelines. There are others, but in these are the
graphs you will see most often in media, public opinion polls and research studies. A
histogram usually has vertical bars placed on the horizontal axis (x-axis) that touch each
other, although some texts no longer require that the bars touch. The y-axis shows the
frequency, percetage or rate of occurrence.
Figure 1. Children's television viewing time.
6.
2.
10
15
20
25
30
35
40
45
50
Viewing time (hours per week)
Note: Television viewing time per week for the sample of 30 preschool children from low-income
families. Frequency refers to the number of children in each category of viewing time.

Transcribed Image Text:5. What percentage of the children watched TV between 20 and 30 hours per week?
6. The Mode is the most frequently occurring score. What is the Mode in Figure 1?
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