The table shows the number of absences, x, in a class and the final exam grade,y, for seven students.X1026433Y95909055708085Use the graphing calculator to find the correlation coefficient.(Round answer to three decimal places. Do not write 0.123as.123.)

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Answered: The table shows the number of absences,…

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 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
Distinguish the correlation shown in the graph below. Summarize why it is the chosen correlation. 30 Use the paperclip button below to attach files. Student can enter max 3000 characters 1- XD 2= DELL to B I U 25 de 2
Find correlation coefficient If xi 0 11 21 23 14 25 yi 5 43 45 47 51 54
Find the co-efficient of correlation for the following table : x: 10 14 18 22 26 30 у: 18 12 24 6 30 36
Please follow and copy the solution given in the example for the answer Thanks.
Given are 3 observations for two variables, x and y. 1 3 6 9 10 40 What is the value of the correlation coefficient? Select one: a. -0.83 O b. 0.83 c. -0.93 d. 0.93
Give an example of two variables that you would expect to have a correlation close to or equal to -1. Give an example of two variables that you would expect to have a correlation close to or equal to 0. Remember that survey question you wrote? Take the class responses to your survey as data related to the one variable of your question. Now, take the list of responses from the survey question that one of your classmates wrote. Write down both lists of data. (If one sample size happens to be different from the other, cut the larger sample size down to that of the smaller sample size.) Calculate the correlation between the two variables. Describe the linear relationship between these two variables. (data for number 3) How many cars have you had so far in your lifetime? 0,1,1,1,2,2,2,2,3,3,3,3,4,4,5,6,6,7,10. How many days per week do you exercise? 0,0,0,1,2,3,3,3,3,4,4,4,4,5,5,5,5,6,6,6
Q28
a teacher asked her students how many hours of sleep they had the night before a test. what type of correlation does your graph show? Determine a equation line of best fit BY HAND using the points 7,90 nd 6,76. hours slept : 8 7 7 8 6 5 7 4 9 7 score 83 86 74 88 76 63 90 60 89 81
For the following correlations write if they are positive or negative. Please only write either Positive or Negative in the space provided. The higher the number of absences, the lower the grade The less time you spent exercising, the fewer the calories you will burn
Solve.

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The table shows the number of absences, x, in a class and the final exam grade, y, for seven students. 1 0 2 6 4 3 3 20 y 95 90 90 55 70 80 85 Use the graphing calculator to find the correlation coefficient. (Round answer to three decimal places. Do not write 0.123 as.123.)