The following data give the hourly wage rates (Rands) for a sample of 20 workers selected from a large company. 12.50 9.45 13.85 7.25 8.70 14.60 11.75 14.50 10.80 12.45 7.50 15.90 9.75 11.50 13.30 6.25 15.50 12.80 5.35 9.50 (1) Using the raw data, determine the range. What percentage of these workers is getting paid in excess of R 12.00 per hour? (ii) Explain why the data is continuous. (iv) Group the data into a frequency distribution with a lowest class lower limit of R 5.00 and a class width of R 2.00. (v) Determine the mean wage rate using the raw data. (vi) Draw an OGIVE curve corresponding to the data and use it to estimate the median.
The following data give the hourly wage rates (Rands) for a sample of 20 workers selected from a large company. 12.50 9.45 13.85 7.25 8.70 14.60 11.75 14.50 10.80 12.45 7.50 15.90 9.75 11.50 13.30 6.25 15.50 12.80 5.35 9.50 (1) Using the raw data, determine the range. What percentage of these workers is getting paid in excess of R 12.00 per hour? (ii) Explain why the data is continuous. (iv) Group the data into a frequency distribution with a lowest class lower limit of R 5.00 and a class width of R 2.00. (v) Determine the mean wage rate using the raw data. (vi) Draw an OGIVE curve corresponding to the data and use it to estimate the median.
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 the last 3 questions
Transcribed Image Text:The following data give the hourly wage rates (Rands) for a sample of 20 workers selected from a large
company.
12.50
9.45
13.85
7.25
8.70
14.60
11.75
14.50
10.80
12.45
7.50
15.90
9.75
11.50
13.30
6.25
15.50
12.80
5.35
9.50
(1)
Using the raw data, determine the range.
(ii)
What percentage of these workers is getting paid in excess of R 12.00 per hour?
(ii)
Explain why the data is continuous.
(iv)
Group the data into a frequency distribution with a lowest class lower limit of R 5.00 and a class
width of R 2.00.
(v)
Determine the mean wage rate using the raw data.
(vi)
Draw an OGIVE curve corresponding to the data and use it to estimate the median.
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