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Jan 9, 2024

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10/16/23, 1:14 PM Practice: Summarizing Associations https://stat20.datahub.berkeley.edu/user/melaniehsiang/rstudio/p/fba52511/ 1/4 mtcars ?mtcars r 1 -0.8676594 m1 <- lm (mpg ~ wt, data = mtcars) ggplot (mtcars, aes ( x = wt, y = mpg)) + geom_point () + labs ( x = "Weight (lbs)" , y = "Fuel summarize (mtcars, r = cor (wt, mpg))
10/16/23, 1:14 PM Practice: Summarizing Associations https://stat20.datahub.berkeley.edu/user/melaniehsiang/rstudio/p/fba52511/ 2/4 r 1 -0.7761684 m1 <- lm (mpg ~ hp, data = mtcars) ggplot (mtcars, aes ( x = hp, y = mpg)) + geom_point () + labs ( x = "Horsepower" , y = "Fuel Ef summarize (mtcars, r = cor (hp, mpg))
10/16/23, 1:14 PM Practice: Summarizing Associations https://stat20.datahub.berkeley.edu/user/melaniehsiang/rstudio/p/fba52511/ 3/4 mpg wt Mazda RX4 21.0 2.620 Mazda RX4 Wag 21.0 2.875 Datsun 710 22.8 2.320 Hornet 4 Drive 21.4 3.215 Hornet Sportabout 18.7 3.440 Valiant 18.1 3.460 Duster 360 14.3 3.570 Merc 240D 24.4 3.190 Merc 230 22.8 3.150 Merc 280 19.2 3.440 Merc 280C 17.8 3.440 Merc 450SE 16.4 4.070 Merc 450SL 17.3 3.730 Merc 450SLC 15.2 3.780 Cadillac Fleetwood 10.4 5.250 Lincoln Continental 10.4 5.424 Chrysler Imperial 14.7 5.345 Fiat 128 32.4 2.200 Honda Civic 30.4 1.615 Toyota Corolla 33.9 1.835 Toyota Corona 21.5 2.465 Dodge Challenger 15.5 3.520 AMC Javelin 15.2 3.435 Camaro Z28 13.3 3.840 Pontiac Firebird 19.2 3.845 Fiat X1-9 27.3 1.935 Porsche 914-2 26.0 2.140 Lotus Europa 30.4 1.513 mtcars %>% select (mpg, wt)
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10/16/23, 1:14 PM Practice: Summarizing Associations https://stat20.datahub.berkeley.edu/user/melaniehsiang/rstudio/p/fba52511/ 4/4 Ford Pantera L 15.8 3.170 Ferrari Dino 19.7 2.770 Maserati Bora 15.0 3.570 Volvo 142E 21.4 2.780