Gerardo is investigating how long his phone's battery lasts (in hours) for various brightness levels (on a scale of0-100). His data is displayed in the table and graph below.Hours10+9876321Brightness Level (x) 16Hours (y)10 20 3037316.7 5.8 5.2Submit Question-1What is the residual for the point (58,7.1)?hoursRejected Questions4050Brightness Level37460 70445.980587.1775.1994.290 100 110MathStatistics

Given that X Y 16 6.7 31 5.8 37 5.2 37 4 44 5.9 58 7.1 77 5.1 99 4.2

Answered: Gerardo is investigating how long his…

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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ONLY DO PART A Burning fuels in power plants and motor vehicles emit carbon dioxide (CO2), contributing to global warming. The table at the right displays CO2 emissions per person from countries with at least 20 million populations. (a) What is the variable of interest? How do you classify it? (b) Make a histogram of the data using classes of width 2, starting at 0. Show the frequency distribution table and create the Histogram of the data. Be mindful of submitting a correct graph. (c) Describe the shape, center, and spread of the distribution. Which countries are outliers? For a description of the shape, center, and spread, put your response in paragraph form. Select the most appropriate measure of center and measure of spread to describe the distribution. Also, do not forget to interpret the values based on the given context. Lastly, do not forget to include the unit of measurements. For outliers, show your method of how you were able to determine these. What can you say about…
Why this type of plot is used in analysing regression models
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This is a chart with Temperature Anomalies and Time, what does it indicate about global warming if y = 0.0007x - 0.5429R² = 0.1793
Emissions of sulfur dioxide by industry set off chemical changes in the atmosphere that result in "acid rain". The acidity of liquids is measured by pH on a scale of 00 to 14.14. Distilled water has pH 7.0,7.0, and lower pH values indicate acidity. Normal rain is somewhat acidic, so acid rain is sometimes defined as rainfall with a pH below 5.0.5.0. The pH of rain at one location varies among rainy days according to a Normal distribution with mean 5.435.43 and standard deviation 0.54.deviation 0.54. What proportion of rainy days have rainfall with pH below 5.0?5.0?
You estimated a regression with the following output. Source | SS df MS Number of obs = 423 -------------+---------------------------------- F(1, 421) = 267.80 Model | 8758968.84 1 8758968.84 Prob > F = 0.0000 Residual | 13769523.8 421 32706.7074 R-squared = 0.3888 -------------+---------------------------------- Adj R-squared = 0.3873 Total | 22528492.7 422 53385.0537 Root MSE = 180.85 ------------------------------------------------------------------------------ Y | Coef. Std. Err. t P>|t| [95% Conf. Interval] -------------+---------------------------------------------------------------- X | 6.150402 .3758334 16.36 0.000 5.411658 6.889145 _cons | -8.022201 24.02003 -0.33 0.739 -55.23632 39.19192…
Warren is investigating how long his phone's battery lasts (in hours) for various brightness levels (on a scale of 0-100). His data is displayed in the table and graph below. Brightness Level (x) 23 56 56 61 75 83 90 96 Hours (y) 7 4.5 4.8 4.3 4.1 1.3 2.1 1.4 What is the residual for the point (75,4.1)? Round to 4 decimal places.
I need help with this please
Would you say the correlation is positive or negative? positive O negative (c) Use a calculator to verify that Σ * Ex=61, Ex Computer. (Round your answer to four decimal places.) 0.9802 Need Help? cloudy = 1007, x2 = 1007, Σy = 634, Σ Master It As x increases from 3 to 23 months, does the value of rimply that y should tend to increase or decrease? Explain y O Given our value of r, y should tend to decrease as x increases. Given our value of r, y should tend to increase as x increases. Given our value of r, we can not draw any conclusions for the behavior of y as x increases. O Given our value of r, y should tend to remain constant as x increases. Q Search = 14 mmm 90,298, and Exy = 9,315. hp 9 |99+ X
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from I. to III. please thank you
Quèstion 1 For the data given in following table, Determine P(X> -2). - 2 1 1 3 1 f(x): 6. 6. 9. 8. o search DELL 19

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