Example 12. Draw a histogram, frequency polygram and frequency curve representing thefollowing data :Daily Wages (in ₹)No. of workers0-202020-405040-609060-803880-10015

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Answered: Example 12. Draw a histogram, frequency…

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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3. The number of customers at a dry-cleaning shop were recorded over a period of 30 working days. The results were as follows: 20 28 26 25 19 27 18 32 26 30 31 29 31 25 21 25 21 | 24 29 18 28 31 27 19 23 31 25 34 27 | 31 (a) Construct a cumulative relative frequency table and use this to draw a cumulative relative frequency curve. (b) Find the five-number summary for these data. (c) Display your answer to b. as a box and whisker plot
calculate coefficient of variation for the following frequency distribution Ages 10-12 12-14 14-16 16-18 18-20 20-22 22-24 24-26 26-28 f 3 30 110 218 275 222 108 32 2
The following table is prepared to create a frequency histogram for an Italian restaurant in Wilmington, Delaware, based on the restaurant’s daily revenue data collected in the past 92 days. For example, the frequency of 18 means for 18 of the past 92 days, the daily revenue of this restaurant is between $0 and $2,000. Class (revenue) Frequency $0 to $2,000 18 $2,000 to $4,000 21 $4,000 to $6,000 26 $6,000 to $8,000 --- $8,000 to $10,000 11 $10,000 to $12,000 4 What is the width of each class for this distribution? (a) $10,000 (b) $8,000 (c) $5,000 (d) $2,000 What should be the frequency for the 4th class ($6,000 to $8,000)? (a) 100 (b) 92 (c) 12 (d) 10 What is the percentage of days, i.e., the relative frequency, that the restaurant generated between $2,000 and $4,000 in revenue? (a) 0.100 (b) 0.228 (c) 0.325 (d) 0.500
Stocks may be categorized by industry. The accompanying data represent three-year rates of return for a sample of financial stocks and retail stocks. Complete parts (a) through (e) below. Click the icon to view the data tables. (a) Construct a relative frequency distribution for each industry. To make an easy comparison, create each frequency distribution so that the lower class limit of the first class is -20 and the class width is Construct a relative frequency distribution for financial stocks. Complete the table below. Rate of Return Relative Frequency Rate of Return Relative Frequency -20 to -0.01 100-119.99 0-19.99 20-39.99 40-59.99 60-79.99 80-99.99 (Round to three decimal places as needed.) -xample Get more help. 120-139.99 140-159.99 160-179.99 180-199.99 1 √₁ Vi 1, Rates of Return Financial Stocks Full data set - 19.75 55.74 55.39 58.44 59.94 0.45 102.29 52.27 195.61 -1.82 44.35 46.14 177.43 85.34 20.57 196.67 57.37 106.80 24.36 93.07 78.51 85.12 176.32 14.83 116.35 150.77…
Project on using MS-Excel in descriptive analysis of data: Assuming that you have conducted a survey in a company for a sample of at least 50 employees, you collected data about employees’ job title, academic qualification, years of experience, and salary of the employee (four variables). Required: a. Input the data about the four variables in MS-Excel sheet. b. Prepare frequency distribution tables for the variables. c. Prepare appropriate graph for each of the frequency tables. d. Prepare a pivot table (cross tabulation) for the two qualitative variables. e. Conduct descriptive analysis for the two quantitative variables (summary measures). f. Find the coefficient of variation (CV) and compare the dispersion of the two quantitative variables.
Please, I want to solve question 8-9 only. Please
20. Find mean, median, mode and midrange
The following is a frequency histogram and a box plot showing the annual salary distribution at a small company. 2- 30 40 50 60 70 80 90 100 110 120 130 140 150 Annual Salary (in thousands of $) Number of Employees 4.
5. Draw a histogram for the following data. Weekly wages in Rupees Number of workers 10-15 7 15-20 19 20-25 27 25-30 15 30-40 12 40–60 12 60–80 8.
The data to the right represent the top speed (in kilometers per hour) of all the players (except goaltenders) in a certain soccer league. Construct (a) a relative frequency distribution (b) a frequency histogram, and (c) a relative frequency histogram. What percentage of players had a top speed between 14 and 17.9 km/h? What percentage of players had a top speed less than 13.9 km/h? Speed (km/hr) Number of Players 10–13.9 4 14–17.9 8 18–21.9 18 22–25.9 76 26–29.9 268 30–33.9 177 (a) Construct a relative frequency distribution. Speed (km/hr) Relative Frequency 10–13.9 14–17.9 18–21.9 22–25.9 26-29.9 30–33.9 (Round to four decimal places as needed.)
A large company's human resources manager undertakes a research that examines the employment records of 500 employees for absenteeism over the previous year. The data is organised into a frequency distribution by the business researcher conducting the study to assist the human resources manager in analysing the data. This graphs show the frequency distribution. Class interval Frequency 0 – 1 218 2 – 3 207 4 – 5 56 6 – 7 11 8 – 9 8 List three specific uses of cumulative frequencies in business. Display a relative frequency histogram and relative frequency polygon for these data. Find mean, median, mode, variance and standard deviation for grouped data.
Complete the frequency distribution table for the data given in the graph: 5 20 25 35 40 Class limits Frequency 5- 10 1 10 - 15 2 15 - 20 20 - 25 25 - 30 30 - 35 35 - 40 6

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Example 12. Draw a histogram, frequency polygram and frequency curve representing the following data: Daily Wages (in) No. of workers 0-20 20 20-40 50 40-60 90 60-80 38 80-100 15