RSTUDIO MUST BE USED TO ANSWER THIS QUESTION Run the following three commands in order\n x...
RSTUDIO MUST BE USED TO ANSWER THIS QUESTION
Run the following three commands in order\n
x <- rnorm(100)
y <- 2*x + 3 + rnorm(100,sd=1)
z <- 2*x + 3 + rnorm(100,sd=2)
Calculate the correlation coefficients between x and y and between x and z.
Identify the true statements below. (There may be more than one correct answer)
A. Both coefficients are positive
B. The correlation between x and z is stronger than that between x and. y
C. The correlation coefficients both indicate a lack of correlation between the two variables.
Homework Answers
Thus based on results we can conclude that:
A. Both co-effecients are positive
B. is not true since corr(X,Z) < cor(X,Y)
C. is not true since both the correlation co-effecients are significant
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RSTUDIO MUST BE USED TO ANSWER THIS
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Run the following three commands in order\n
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is Rstudio
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Random variables X and Y arejointly Gaussian with 2] 4 -4 m=[1 1. Find the correlation coefficient between X and Y. 3. Find the PDF of Z.
here is the data Y X 34.38 22.06 30.38 19.88 26.13 18.83 31.85 22.09 26.77 17.19...
here is the data
Y X
34.38 22.06
30.38 19.88
26.13 18.83
31.85 22.09
26.77 17.19
29.00 20.72
28.92 18.10
26.30 18.01
29.49 18.69
31.36 18.05
27.07 17.75
31.17 19.96
27.74 17.87
30.01 20.20
29.61 20.65
31.78 20.32
32.93 21.37
30.29 17.31
28.57 23.50
29.80 22.02
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please help me understand this. I will greatly appreciate a
fully detailed answer as I want to understand this problem than
just get the answer. Thanks.
Random variables X and Y arejointly Gaussian with 2] 4 -4 m=[1 1. Find the correlation coefficient between X and Y. 3. Find the PDF of Z.
here is the data
Y X
34.38 22.06
30.38 19.88
26.13 18.83
31.85 22.09
26.77 17.19
29.00 20.72
28.92 18.10
26.30 18.01
29.49 18.69
31.36 18.05
27.07 17.75
31.17 19.96
27.74 17.87
30.01 20.20
29.61 20.65
31.78 20.32
32.93 21.37
30.29 17.31
28.57 23.50
29.80 22.02
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