for given R data frame: data = data.frame(y = c(25.9,29.5,27.9,25.9,29.9,29.9,30.9,28.9,35.9,31.5,31,30.9,30,36.9,41.9,40.5,43.9,37.5,37.9,44.5),x6 = c(7,7,6,6,6,6,7,6,6,6,5,6,5,8,7,6,7,6,6,8),x7 = c(4,4,3,3,3,3,3,3,3,3,2,3,2,4,3,3,3,3,3,4),x9 = c(0,0,0,0,0,0,1,0,0,0,0,0,1,0,1,0,0,1,0,1)) What is the R code to find the expectation value of the mean squared purity error?

for given R data frame: data = data.frame(y = c(25.9,29.5,27.9,25.9,29.9,29.9,30.9,28.9,35.9,31.5,31,30.9,30,36.9,41.9,40.5,43.9,37.5,37.9,44.5),x6 = c(7,7,6,6,6,6,7,6,6,6,5,6,5,8,7,6,7,6,6,8),x7 = c(4,4,3,3,3,3,3,3,3,3,2,3,2,4,3,3,3,3,3,4),x9 = c(0,0,0,0,0,0,1,0,0,0,0,0,1,0,1,0,0,1,0,1)) What is the R code to find the expectation value of the mean squared purity error?

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter3: Functions And Graphs

Section3.3: Lines

Problem 19E

See similar textbooks

Similar questions

Here is the data for the 8 friends reporting shoe size and ring size Friend Shoe size Ring size G 12 8 H 10 6 A 11 7 B 8 6 D 8 6 K 11 7 R 7 6 F 9 7 Question text Construct a scatterplot with the shoe size (X) and ring size (Y) data to see if the relationship looks linear. Be sure to label your axes and upload your scatter plot.
Suppose that a customer is purchasing a car. He conducts an experiment in which he puts 10 gallons of gas in the car and drives it until it runs out of gas. He conducts this experiment 15 times on each car and records the number of miles driven. Full data set Car 1 216 243 205 242 239 297 295 172 270 251 165 310 265 316 278 Car 2 231 220 223 205 245 257 242 292 248 252 287 255 250 293 251 ..... Describe each data set, that is determine the shape, center, and spread. Sample mean for Car 1 x=__________mi / 10 gal (Type an integer or decimal rounded to one decimal place as needed.) Sample mean for Car 2 x=___________mi / 10 gal (Type an integer or decimal rounded to one decimal place as needed.) Median for Car 1 M=____________mi / 10 gal (Type an integer or decimal rounded to one decimal place as needed.) Median for Car 2 M=___________mi / 10 gal (Type…
Given following data set generate dot plot number of text messages sent by 20 students in Mrs. T calculus class 1 3 2 13 32 8 2 6 3 4 1 0 2 2 0 2 1 2 7 2
Find the new data point (x,y) in which x=2 from the data points (1,3) and (4,12)
This is the data set according to the following table of values:x y 0 11 22 43 8-1 1/2-2 1/4-3 1/8On a Cartesian plane, plot the data set.
Find the value of m, b, and A so that f fits the data.
The following table shows retail sales in drug stores in billions of dollars in the U.S. for years since 1995. Year Retail Sales 0 85.851 3 108.426 6 141.781 9 169.256 12 202.297 15 222.266 Let S(t)S(t) be the retails sales in billions of dollars in t years since 1995. A linear model for the data is F(t)=9.44t+84.182F(t)=9.44t+84.182.Use the above scatter plot to decide whether the linear model fits the data well. The function is a good model for the data. The function is not a good model for the data Estimate the retails sales in the U. S. in 2013. billions of dollars.Use the model to predict the year that corresponds to retails sales of $242 billion.
The following table shows retail sales in drug stores in billions of dollars in the U.S. for years since 1995. Year Retail Sales 0 85.851 3 108.426 6 141.781 9 169.256 12 202.297 15 222.266 Let S(t)S(t) be the retails sales in billions of dollars in t years since 1995. A linear model for the data is F(t)=9.44t+84.182F(t)=9.44t+84.182.Use the above scatter plot to decide whether the linear model fits the data well. The function is not a good model for the data The function is a good model for the data. Estimate the retails sales in the U. S. in 2011. ______ billions of dollars.Use the model to predict the year in which retails sales will be $233 billion. _______
The following table shows retail sales in drug stores in billions of dollars in the U.S. for years since 1995. Year Retail Sales 0 85.851 3 108.426 6 141.781 9 169.256 12 202.297 15 222.266 Let y be the retails sales in billions of dollars in xx years since 1995. A linear model for the data is y=9.44x+84.182y=9.44x+84.182.A) Use the above scatter plot to decide whether the line of best fit, fits the data well. a) The function is a good model for the data. or b) The function is not a good model for the data B) To the nearest billion, estimate the retails sales in the U. S. in 2011. __?__ billions of dollars.C) Use the equation to find the year in which retails sales will be $234 billion. __?__
For this grouped data set: Scores | Frequencies 30-34 | 7 25-29 | 9 20-24 | 14 15-19 | 10 10-14 | 8 5-9 | 2 What is the Skewness and Kurtosis of the data set?
The following data represent the muzzle velocity (in feet per second) of rounds fired from a 155-mm gun. For each round, two measurements of the velocity were recorded using two different measuring devices, resulting in the following data. Complete parts (a) through (d) below. Observation 1 2 3 4 5 6 A 791.7 791.7 794.2 792.1 792.5 792.3 B 800.2 788.4 797.7 791.5 800.4 789.6 1. Why are these matched-pairs data? A.Two measurements (A and B) are taken on the same round. B.The same round was fired in every trial. C. The measurements (A and B) are taken by the same instrument. D. All the measurements came from rounds fired from the same gun. b) Is there a difference in the measurement of the muzzle velocity between device A and device B at the α=0.01 level of significance? Note: A normal probability plot and boxplot of the data indicate that the differences are approximately normally…
The table below contains the average public school classroom teacher's salaries, S, for an 11-year period. Letting t=0 represent 1990,t=1 for 1991 and so on, use a graphing utility to find a linear model for the data. Year 1990 1991 1992 1993 1994 1995 Salary 33099 32478 34024 37111 37541 36684 Year 1996 1997 1998 1999 2000 Salary 37803 38055 39327 43052 42163 Salary, written as a function of t is given by S(t)=