1924 1925 1926 1927 1928 1929 1930 1931 1932 19337-22 8-28 -83 10-54 9-461.33 1.34 2.50 2.67 2.78 2.26YearsNumber convicted 7-88 8-12 7.86 7.25 7.447.44of crime1-26 1.24 1.43 1.19Number ofunemployed 1.The figures in the following table give the number of criminalconvictions and the number unemployed (in millions) for the years 1924-33.Find the coefficient of rank correlation.

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Answered: 1. The figures in the following table…

MATLAB: An Introduction with Applications

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ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

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For the following scores, X Y 0 4 2 9 1 6 1 9 Draw a scatter plot. Is this a positive or negative correlation? Explain what a positive correlation and negative correlation are. Compute the pearson correlation.
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A Pearson correlation of r = -0.90 indicates that the data points are clustered close to a line that slopes down to the right. Question 3 options: True False
10. The sign of the Pearson’s correlation coefficient (r) tells us what information? a. only the strength of the correlation (small, medium, or large) b. only the direction of the correlation (negative or positive) c. both the strength and direction of the correlation d. the strength, direction, and form of the correlation
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The following are the monthly figures of advertising expenditure and sales of a firm. It is generally found that advertising expenditure has its impact on sales after 2 months. Allowing for this time lag, calculate coefficient of correlation. Advertising Expenditure ('000) Sales Months Advertising Expenditure ('000) Months Sales 1,200 July Aug. Jan. 50 140 2,400 Feb. 60 1,500 160 2,600 March 70 1,600 Sep. 170 2,800 90 2,000 Oct. 190 2,900 April May 120 2,200 Nov. 200 3,100 June 150 2,500 Dec. 250 3,900
Explain the concept of Range Restriction, and the issue it may pose to correlation statistics

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1. The figures in the following table give the number of criminal convictions and the number unemployed (in millions) for the years 1924-33. Find the coefficient of rank correlation.