Calculate the correlation between x and y A) 0.2074B) -0.3074C) -0.2074D) 0.3074 . IA10109)' ог- Я во0) . чо. 99.чоя1510ShооSXP (X, Y)сакшане Plo

X Y 0 5 10 15 Total 0 0.02 0.06 0.02 0.1 0.2 5 0.04 0.15 0.2 0.1 0.49 10 0.01 0.15…

Answered: calculate Plo≤ x ≤3) Y 5 P (X, Y) O X 5…

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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Find the correlation coefficient between x and y values given below. 2 3 5 6 12 y 20 12 10 8 7 3 Select one: a. 0.920 b. 0.898 C.-0.898 d. -0.920 е. -0.296
d) Correlation by eye Sample size=45 y 20- 15- og 8. 10- 5. 10 15 20 25 X Try to guess the sample correlation within +/- 0.1 Guess: Correlation: Sample coeficient of correlation a o 00 00
A researcher hypothesized that an increase in stress at work was caused by an increase in consumption of alcohol. Further research found that increased consumption of alcohol was caused by increased work stress. This is an example of O al a reverse cause-and-effect relationship a presumed cause-and-effect relationship an accidental cause-and-effect c) relationship d) a cause-and-effect relationship O b)
Which of the following choices could be the Pearson correlation between the x and y variables shown in the scatter plot shown here? a) .934 b) -.934 c) 1 d) 0
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
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9. Tell whether the correlation coefficient would be closest to -1, 0 or 1. a. b. с. 150 150 150 100 100 100 50 50 50 0 2 4 6 x 0 2 4 6x 0 2 4 6 x
38 - As a result of the research, it was concluded that there is no relationship between the two variables. What is the value of the correlation coefficient? O A) 0,25 O B) 1,0 O C) 0,50 O D) 0,0 O E) 0,75

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