The following are advertised sale prices of color televisions at an electronics store. Size (inches) Sale Price ($) 9 137 20 177 27 287 31 447 35 1177 40 2177 60 2497 Part (a) Part (b) Part (c) Part (d) O Part (e) Find the correlation coefficient r. (Round your answer to four decimal places.) r= Is it significant? Yes No O Part (f) Find the estimated sale price for a 34 inch television. (Use your equation from part (d). Round your answer to two decimal places.) $ Find the estimated sale price for a 52 inch television. (Use your equation from part (d). Round your answer to two decimal places.) O Part (g) Does it appear that a line is the best way to fit the data? Why or why not? A line does not appear to be the best way to fit the data because it does not touch all the data points. A line is the best way to fit the data because the slope of the line is positive and the linear correlation is positive. A line does appear to be the best way to fit the data because the data follow a weak positive trend. A line does not appear to be the best way to fit the data because the data do not follow a linear trend. O O O

Q: Integrate and simplify:

A: We have ,

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Matrices

‘Matrices’ is the plural form of the word matrix, and it is basically a spreadsheet in the form of a box. In mathematics, various functions can be carried out with matrices. Generally, a matrix comes in the shape of a square or rectangle. The elements are distributed horizontally in the form of rows, and vertically in the form of columns.