Given are five observations for tvwo variables, z and y.5148 23 205341521420a. Choose the correct scatter diagram for these data:A.В.y6060505040403030-202010-10102030405060 x102030405060 xC.D.606050504040-30-30 505040-40-3030-202010-10102030405060 x102030405060 x- Select your answer -b. What does the scatter diagram developed in part (a) indicate about the relationship between the two variables?There appears to be a - Select your answer - v linear relationship between 3 and y.c. Try to approximate the relationship between a and y by drawing a straight line through the data.Select your answer -v to provide a linear approximation of the relationship between 2 and y.d. Develop the estimated regression equation by computing the values of by and bi using equations: (Enter negative values as negative figure)Σ-)-)bo = - b1Eŷ =æ (to 2 decimals)%3De. Use the estimated regression equation to predict the value of y when I = 17.(to 2 decimals)%3D

Given that Two varaibles X and Y having five observations We have to draw scatter diagram using…

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MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Complete parts (a) through (h) for the data below. X 2 3 4 6 7 y 3 6 10 15 18 (a) By hand, draw a scatter diagram treating x as the explanatory variable and y as the response variable. Choose the correct scatter diagram below. A. Ax 10- 20 y 20- Ay 10 10- (b) Find the equation of the line containing the points (2,3) and (7,18). y= ☐ X X+ (Type integers or simplified fractions.) X 20 -0 10 X
The temperature of a liquid during the first four minutes of an experiment has been recorded in the table below. Time (x) (minutes) 0 1 2 3 4 Temperature (y) (°C) 30 33 40 56 73 Determine if the relationship between temperature and time is linear by constructing a residual plot.
How much should a healthy Shetland pony weigh? Let x be the age of the pony (in months), and let y be the average weight of the pony (in kilograms). x 3 6 12 15 21 y 60 95 140 172 173 (a) Make a scatter diagram of the data and visualize the line you think best fits the data. A scatter diagram has a horizontal axis labeled "x (age (in months))" with values from 60 to 173 and a vertical axis labeled "y (average weight (in kg))" with values from 3 to 21. The scatter diagram has 5 points. A pattern goes up and right from (60, 3) to (173, 21). A scatter diagram has a horizontal axis labeled "x (age (in months))" with values from 3 to 21 and a vertical axis labeled "y (average weight (in kg))" with values from 60 to 173. The scatter diagram has 5 points. A pattern goes down and right from (3, 173) to (21, 60). A scatter diagram has a horizontal axis labeled "x (age (in months))" with values from 3 to 21 and a vertical axis labeled "y (average weight (in kg))" with…
The table describes the height of a weather balloon, in meters, minutes after its launch. Time (minutes) Height (meters) 0 60 1 68.2 2 74.3 3 80.9 4 89.7 8 128.5 Select which equation best models the data. O O O O y = 8.52 +58 y = 8.2x + 60 y = 11.4x +57 y = 11.8x + 54
The table below shows the number of state-registered automatic weapons and the murder rate for several Northwestern states. 11.6 8.1 7.1 3.9 2.9 2.6 2.1 0.7 13.7 10.7 10.2 7 6.5 6.5 5.7 4.7 thousands of automatic weapons y = murders per 100,000 residents This data can be modeled by the linear equation 0.83x + 4.08 a. How many murders per 100,000 residents can be expected in a state with 10.3 thousand automatic weapons? Round to 3 decimal places. murders per 100,000 residents b. How many murders per 100,000 residents can be expected in a state with 2.5 thousand automatic weapons? Round to 3 decimal places. murders per 100,000 residents
How much should a healthy Shetland pony weigh? Let x be the age of the pony (in months), and let y be the average weight of the pony (in kilograms). x 3 6 12 20 26 y 60 95 140 160 189 (a) Make a scatter diagram of the data and visualize the line you think best fits the data. Flash Player version 10 or higher is required for this question. You can get Flash Player free from Adobe's website. (b) Would you say the correlation is low, moderate, or strong? low moderate strong Would you say the correlation is positive or negative? positive negative (c) Use a calculator to verify that x = 67, x2 = 1265, y = 644, y2 = 93,546, and xy = 10,544. Compute r. (Round your answer to three decimal places.) As x increases from 3 to 26 months, does the value of r imply that y should tend to increase or decrease? Explain your answer. Given our value of r, y should…
6 The table shows the number of gallons of gasoline in a car's gas tank after the car has been driven x miles. Gasoline Usage Gallons of Miles Driven, Gasoline in Tank, y 15 10 14.6 20 14.2 35 13.6 60 12.6 75 12 When these data are graphed on a coordinate grid, the points all lie on the same line. What are the slope and y-intercept of this line? F Slope 25' y-intercept = 375 G Slope = 25 Y-intercept = 15 H Slope = 25, y-intercept = 375 J Slope = -25, y-intercept = 15
I'm not sure about this answer.
d and e only
The data in the following table show five students' reading test scores and final exam grades in a history class. Reading Test Score, x 8.5 9.4 10.0 11.4 12.0 History Final Exam Grade, y 66 68 78 87 92 (a) Use the points (8.5, 66) and (10.0, 78) to find a linear model that will predict a student's final exam grade, y, given his or her reading test score, x. y= (b) Use your linear model to estimate a student's final exam grade in the history class given that the student's reading test score was 10.5.

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