The number of banks in a country has been dropping steadily since 1984, and the trend in recent years has been roughly linear. The annual data for the years 1999 through 2008 can besummarized as follows, where x represents the years since 1990 and y the number of banks, in thousands.n=10 Ex-235 ²-5605 Ey-77.564 Ey²=603.80424 Exy-1810.155a. Find an equation for the least squares line.b. Use your result from part a to predict the number of banks in the year 2020.c. If this trend continues linearly, in what year will the number of banks drop below 6200?d. Find and interpret the correlation coefficient.

n = 10 Σx = 236 Σx2 = 5605 Σy = 77.564 Σy2 = 603.80424 Σxy = 1810.156

Answered: The number of banks in a country has…

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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