Mathematics, 16.10.2019 17:40 billycain9647
Choose the best answer from among choices below. a police department wants to find out if a correlation exists between x = the number of muggings per night during warmer nights in a particular park not far from downtown and y = degrees fahrenheit. this is to decide how police duties should be allocated on these nights. some data points for some nights from the spring and summer of the past year are listed below. x: {5,7,8,4,11,12,8,7} y: {79,82,83,81,86,89,91,84,} compute the coefficient of correlation r. compute the coefficient of determination r^2. what percentage of the variation in y can be explained by the corresponding variation in x using the least-squares line? what percentage of the variation is unexplained? select one: a. r = 0.7132; r^2 = 0.5087; 51% explained; 49% unexplained b. r = 0.7217; r^2 = 0.5208; 52% explained; 48% unexplained c. r = 0.7877; r^2 = 0.6204; 62% explained; 38% unexplained d. r = 0.6911; r^2 = 0.4776; 48% explained; 52% unexplained check
Answers: 2
Mathematics, 21.06.2019 17:50
(01.02 lc) angle abc has point e on ray ba and point d on ray bc. points e and d are equidistant from point b. to bisect angle abc, which of the following needs to be identified for the construction? the distance between points e and d the point in the angle that is equidistant from points e and d the endpoint of rays ba and bc the point outside of the angle that is equidistant from points e and d
Answers: 1
Mathematics, 21.06.2019 20:30
Carley bought a jacket that was discounted 10% off the original price. the expression below represents the discounted price in dollars, based on x, the original price of the jacket.
Answers: 1
Mathematics, 21.06.2019 22:00
Determine if the equation defines y as a function of x: 2xy = 1. yes o no
Answers: 2
Mathematics, 21.06.2019 23:30
The graph of the the function f(x) is given below. find [tex]\lim_{x \to 0\zero} f(x)[/tex] [tex]\lim_{x \to 1+\oneplus} f(x)[/tex] [tex]\lim_{x \to 0-\zeroneg} f(x)[/tex]
Answers: 1
Choose the best answer from among choices below. a police department wants to find out if a correlat...
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