The following is a joint probability mass function.1 1 2 43 4 5 6yfxv(x, y) 1/8 1/4 1/2 1/8Determine the covariance and correlation.Round your answers to four decimal places (e.g. 98.7654).Statistical Tables and ChartsPart 1covariance (COV(X,Y))

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Answered: Determine the covariance and…

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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Answer the questions for the data in the table below. x 012578 y 1 3 5 6 10 9 a. Draw a scatter diagram for the data. Should the value of r be positive or negative? Explain. b. Calculate the value of r. Round your answer to 3 decimal places. r =
Which of these can help you visualize data? Select all that apply. O bank statement O circle graph O spreadsheet O table O bar graph
The correlation between midterm and final grades for 300 students is 0.620. If 5 points are added to each midterm grade, the new r will be: a. 0.124 b. 0.57 c. 0.62 d. 0.744
Trapezoids HW Maya Paniagua - L8.7 HW.pdf K Maya Paniagua - L8 web.kamihq.com/web/viewer.html?state%3D%7B"ids"%3A%5B"1iIEDhS5uGS arks Maya Paniagua - CI. tEdu O Geometry 202. ► Maya Paniagua - L8.7 HW.pdf 11. Find WX. P 27 Q W R 39
Which value of r indicates a stronger correlation: r= 0.841 or r= - 0.949? Explain your reasoning. Choose the correct answer below. O A. r= 0.841 represents a stronger correlation because -0.949 > 0.841|. B. r= - 0.949 represents a stronger correlation because -0.949|> |0.841|. C. r= - 0.949 represents a stronger correlation because 0.841 > - 0.949. D. r= 0.841 represents a stronger correlation because 0.841 > - 0.949.
State, whether the quantity described, is a parameter or a statistic and give the correct notation. The proportion of all college students in the US, using data from the US Census. A. It is neither a parameter nor a statistic. The notation is alfa. B. It is a sample statistic. The notation is x-bar. C. It is a population parameter. The notation is p.
The data set shows the GDP per people in 24 countries, along with the proportion of person that have a linkedin social media account. A. the covariance is ___ percentage dollars. be careful of the units. round to the nearest integer. B. r= ___ c. Choose the correct answer below. A. There is no clear relationship between the GDP and LinkedIn accounts. B. There is a strong positive relationship between the GDP and LinkedIn accounts. C. There is a weak positive relationship between the GDP and LinkedIn accounts. D. There is a strong negative relationship between the GDP and LinkedIn accounts. GDP (PPP) Social Media Usage (%) 6,905 89 17,863 87 5,114 86 9,989 86 6,121 83 6,593 83 13,899 81 4,013 83 16,146 75 4,696 79 16,470 76 19,857 72 18,155 71 3,501 74 19,526 75 8,007 76 4,033 73 13,651 69 16,990 68 6,642 70 6,447 70 6,434 68 13,052 64 10,874 47
Cite any relevant observation/s from the diagram below. 100 80 10 20 30 Observation number (hour)
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Match each scatterplot shown below with one of the four specified correlations Please help

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Determine the covariance and correlation. Round your answers to four decimal places (e.g. 98.7654).