Mathematics, 16.10.2020 17:01 taijaunam
Data collected on the depth of the Nile River in the speed at which the river travels are given in the table:
Find r², and interpret the results.
A: 0.88; The least-squares regression line, given by ŷ=1.68-0.12x, is a good fit for the data.
B: -0.94; The least-squares regression line, given by ŷ=1.68-0.12x, is a good fit for the data.
C: 0.88; The least-squares regression line, given by ŷ=-0.12+1.68x, is not a good fit for the data.
D: -0.94; The least-squares regression line, given by ŷ=-0.12+1.68x, is not a good fit for the data.
E: -0.12; The least-squares regression line, given by ŷ=1.68+0.88x, is not a good fit for the data.
Answers: 1
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If the discriminant if a quadratic equation is 4 which statement describes the roots?
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Three students, javier, sam, and corrine, participated in a fundraiser where people donated a certain amount of money per lap that the student ran. each student also had some initial donations that were collected before the run. the equations that represent each student's total donation, y, based on the number of laps ran, x, is shown below. match each equation with the correct rate of change for that student.
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Asample of 200 rom computer chips was selected on each of 30 consecutive days, and the number of nonconforming chips on each day was as follows: the data has been given so that it can be copied into r as a vector. non.conforming = c(10, 15, 21, 19, 34, 16, 5, 24, 8, 21, 32, 14, 14, 19, 18, 20, 12, 23, 10, 19, 20, 18, 13, 26, 33, 14, 12, 21, 12, 27) #construct a p chart by using the following code. you will need to enter your values for pbar, lcl and ucl. pbar = lcl = ucl = plot(non.conforming/200, ylim = c(0,.5)) abline(h = pbar, lty = 2) abline(h = lcl, lty = 3) abline(h = ucl, lty = 3)
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Data collected on the depth of the Nile River in the speed at which the river travels are given in t...
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