(d) Comment on whether a linear model is a good model. Explain why.(e) Predict the breaking distance if you were going 65 miles per hour. Use your rounded values from part(b). Round your final answer to one decimal.feet(f) What speed would you be traveling at if you needed 200 feet to break? Use your rounded values frompart (b). Round your final answer to two decimals.mph The following data represent the speed of a car (in miles per hour) and its breaking distance (in feet) ondry asphalt.SpeedBreaking Distance30405060708064.989.3100.6124.4149.4163.2(a) Draw a scatter plot.180150-120-90-60-30-1010 2030 40 5060 708090Clear All Draw: Dot(b) Find the least squares regresssion line. Round the slope and y-intercept to two decimals.B(x) =(c) Find the linear correlation coefficient. Round your answer to 4 decimals.r =

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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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The following is data for the first and second Quiz scores for 8 students in a class. First Quiz (Q1) Second Quiz (Q2) 15 15 16 13 17 15 22 21 24 24 26 21 29 27 30 27 Plot the points in the grid below, then sketch a line that best fits the data. Use the line above to predict the value of the second quiz score if a student had a score of 1212 on the first test. (Please enter a whole number)
Enter the data below into lists and graph the scatter plotof the data, using the window [-20, 120] by [0, 80].
A class of 20 students completed a math test. Their test results are gathered in the chart below. Construct a stem and leaf plot. 22 14 12 9 54 12 16 12 14 49 10 14 8 21 37 28 36 22 9 33 Send data to Excel Arrange the leaves in order from smallest to largest. Stems Leaves 0 Check 1 2 000000 1 © 2022 McGraw Hill LLC. All Rights Reserved. F Save For Lat Terms of Use ©.
The following table shows the average annual amount of precipitation (mm) for 16 Canadian cities. Create a box-and-whisker plot to display this information. Precipitation (mm) City St. John's 1482 |Charlottetown 1201 Halifax 1474 Fredericton 1131 Québec City 1208 Montréal 940 |Ottawa 911 |Toronto 819 Winnipeg Regina 504 364 Edmonton 461 |Calgary 399 Vancouver 1167 Victoria 858 Whitehorse 269 Yellowknife 267
Here is a data set: 68 76 95 72 73 65 74 88 79 75 70 82 96 66 61 68 70 66 80 80 63 60 81 77 76 72 71 97 79 77 You are examining the data with a stem-and-leaf plot. Here is the start of the plot. Finish the plot.6# | 013566887# | 001223456677998# | 001289# |
Suppose a researcher collects data on the air pollution levels, measured in milligrams per cubic meter, for both urban and rural areas in 35 states. The data is plotted with urban air pollution levels on the horizontal axis and rural air pollution levels on the vertical axis. Nevada is an outlier in the ?x‑direction. What must be true about this state? The urban air pollution levels for this state are much higher or lower than the rest of the states in the data set. The rural air pollution levels for this state are much higher or much lower than the rest of the states in the data set. This state is an influential observation. The rural air pollution levels for this state are much higher or lower than other states in the data set that have similar urban air pollution levels. The absolute value of the residual of this state is large.
The following data are the scores of 19 students on an algebra test. 62 , 84 , 87 , 92 , 55 , 75 , 85 , 63 , 58 , 70 , 60 , 86 , 95 , 61 , 92 , 65 , 84 , 75 , 64 Send data to calculator Send data to Excel Using the tool provided, construct a box-and-whisker plot (sometimes called a boxplot) for the data. 55 60 65 70 75 80 85 90 95 Score on algebra test
Here is a data set: 73 59 78 40 55 | 43 46 55 67 56 45 54 63 57 54 57 58 48 61 49 57 59 55 65 63 46 74 42 55 53 You are examining the data with a stem-and-leaf plot. Here is the start of the plot. Finish the plot. 4# | 02356689 5# | 34455556777899 6# | 13357 7# |
E Use a stem-and-leaf plot that has two rows for each stem to display the data, which represent the income (in millions) of 30 of the highest paid athletes. Describe any patterns. 76 45 34 35 36 44 50 35 56 56 44 43 81 53 38 73 68 46 63 38 87 34 34 42 45 58 Determine the leaves in the stem-and-leaf plot below. Key: 313-33 Income ($ millions) 3 What best describes the data? 站 F2 R OA. Most of the incomes are less than 60 million dollars. OB. Most of the incomes are between 50 and 70 million dollars. OC. The incomes are evenly spread between 30 and 90 million dollars. OD. Most of the incomes are greater than 60 million dollars. V % 5 F4 T G B Y H N F5 46 53 U J 37 41 F6 ( 8 M K 9 F8 L P Alt Gr DELL F9 N F10 TE F11 1 T F12 - Intro Power Impant Sleep Pet Sis Insert Blog Despl Wake ONLOFF Supr Inicio
Consider the following Box plots where data set A and data set B. Which data set has the largest variation?
The accompanying table shows the height (in inches) of 8 and their scores on an IQ test. Here is the data table Height, x IQ score, y62 10156 9363 10167 10858 8962 10565 11054 122 Display the data in a scatter plot. Choose the correct graph in the image.
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