4-5. Railroad Crossing Accidents The data show the num-ber of railroad crossing accidents for the 50 states of theUnited States for a specific year. Construct a histogram,frequency polygon, and ogive for the data. Comment onthe skewness of the distribution. (The data in this exer-cise will be used for Exercise 15 in this section.)Class limitsFrequency1-432444-8687-12917130-1723.173-215216-258259-301302-344Total 50Source: Federal Railroad Administration.2-26177-7Go to www.aleks.com and click on StLUN NOW! under the Registered UseSTEP 1:

Answered: 4- 5. Railroad Crossing Accidents The…

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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Please answer each question below please
I) determine the number of classes ii) estimate the greatest and least frequencies. iii) determine the class width describe any patterns with the data.
There are 8 parts to this question
Please do not give solution in image format thanku A car salesman collected data on how many cars were sold at a dealership per day for two weeks. The results were as follows: 6, 7, 4, 3, 1, 2, 6, 6, 6, 7, 4, 4. Make a frequency table and then make a histogram based on that frequency table. What is the shape of the distribution? O Skewed to the right O Skewed to the left O Bimodal O Symmetrical
Example 1 Construct a histogram for the following frequency distribution. С. I. : 10-20 20–30 30–40 40-50 Frequency: 2 4 2
During one shift, the express lane clerk recorded how many times customers violated the "10 items or less" rule for his lane. In particular, he recorded how many items over the limit each violator placed on the conveyor belt. This data is summarized in the histogram below. NOTE: The last class actually represents "7 or more items," not just 7 items. Frequency SHIFT 14- 12 10- 8- 6 CAPS 0.5 1.5 2.5 3.5 4.5 5.5 5.5 6.5 7.5 #items over 10 Q What is the frequency of times the limit was exceeded by at least 2 items? 38°F Clear 4 ans 2H TAB 61 Check Answer ESC ! F1 ! Q A Z BEBEEEE F2 X 2 W S F3 # * 3 Q Search X E F4 LA 4 F5 с % R 5 LLI F6 T V 6 HCO F7 1111 4+ 7 Y F8 G H * 00 с F9 J B N
Determine the leaves for the given data points in the range of 80 to 89 for this stem leaf plot
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1. Find the class midpoints of the first three classes (20-29,30-39, and 40-49) 2. Is the data displayed in the frequency table approximately normal? Explain your reasoning
Identify the lower class limits, upper class limits, classwidth, class midpoints, and class boundaries for the given frequency distribution. Also identify the number of individuals included in the summary. Age (yr) when award was won Frequency 10-13 28 14-17 34 18-21 15 22-25 3 26-29 6 30-33 1 34-37 2 Identify the lower class limits. 1010,1414,1818,2222,2626,3030,3434 (Type integers or decimals. Do not round. Use ascending order.) Identify the upper class limits. 1313,1717,2121,2525,2929,3333,3737 (Type integers or decimals. Do not round. Use ascending order.) Identify the class width. 44 (Type an integer or a decimal. Do not round.) Identify the class midpoints. nothing,nothing,nothing,nothing,nothing,nothing,nothing (Type integers or decimals. Do not round. Use ascending order.) Identify…
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Set 3 0 2 0 1 0 0 0 0 1 0 0 0 0 0 0 2 0 0 0 0 2 0 1 0 0 0 4 1 0 0 1 0 0 0 1 0 Assume that the third set below are data from a survey of riders of a city bus system. Each rider was asked to indicate the number of times he or she had taken a bus on a Sunday during the previous month. Prepare a graphical representation of the relative frequency data.

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