HomeworkLib
Question

Below is an incomplete table used in finding the correlation between x and y based on three observations. Find the missing values with the given information.Yi-y Sy Ii- Sr 6 -4 2 5 2

math   Statistics-And-Probability   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

from given table:

x y xi-xbar yi-ybar (xi-xbar)/sx (yi-ybar)/sy
1 6 -4 2 -1 1
5 4 0 0 0 0
9 2 4 -2 1 -1
average 5 4
std deviation 4 2
0 0
Add a comment
Know the answer?
Add Answer to:
Below is an incomplete table used in finding the correlation between x and y based on...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • 4.he sample correlation coefficient between X and Y, rxy Sx/Sx S where S-the covariance between X...

    4.he sample correlation coefficient between X and Y, rxy Sx/Sx S where S-the covariance between X and Ys Σ(X-XM) (-Yu)/ n-1 Sx the standard deviation of X and Sy the standard deviation of Y I) If the covariance is positive, the correlation coefficient must be positive: True or False? ii) If the covariance is negative, the correlation coefficient must be positive: True or False? a) ii) The correlation coefficient must lie between 0 and 1. True or False? v)lf the...

  • HELP ASAP For the data set below, calculate the correlation between X and Y to three...

    HELP ASAP For the data set below, calculate the correlation between X and Y to three (3) decimal places. To Use Excel's CORREL Function 1). Open up the worksheet above and select a blank cell you might need to click "Enable Editing" to select a cell). 2). Type -CORRELL 3). For "arrayı, select the column of values for one of the variables. Remember, for correlation that it does not matter which variable you call "X" and which you call "Y."...

  • Based on the data shown below, calculate the correlation coefficient (to three decimal places) x y...

    Based on the data shown below, calculate the correlation coefficient (to three decimal places) x y 4 15.7 5 17.05 6 19 7 24.05 8 26.6 9 28.25 10 29.2

  • Consider n = 5 pairs (x! ,y, , . . . , (xt, y,'). Let x...

    Consider n = 5 pairs (x! ,y, , . . . , (xt, y,'). Let x = n-ı Σ i , and y = n-ı Σ -1 y be the sample means of the x and y variables. Let & and Sy be the corresponding standard deviations. Let sry and rry be the sample covariance and sample correlation respective . Suppose x = 6.2,J = 8 8 2.95, sy4.494, sy 13.05. Part a) What is the sample correlation of the...

  • Based on the data shown below, calculate the correlation coefficient (to three decimal places) x y...

    Based on the data shown below, calculate the correlation coefficient (to three decimal places) x y 4 23.14 5 21.07 6 19.1 7 18.33 8 19.86 9 18.49 10 18.42 11 19.45 12 19.28 13 18.61 14 16.34 15 15.97 16 15.4

  • Consider a data set consisting of values for three variables: x, y, and z. Three observations...

    Consider a data set consisting of values for three variables: x, y, and z. Three observations are made on each of the three variables. The following table shows the values of x, y, z, x2, y2, z2, xy, yz, and xz for each observation. Observation x y z x2 y2 z2 xy yz xz 6 6 2 36 36 4 36 12 12 4 3 8 16 9 64 12 24 32 2 6 5 4 36 25 12 30...

  • Values of f (x, y are in the table below. 68 10 у0.2 5 719 4 6 5 Let R be the rectangle: 4.0 Sx 4...

    Values of f (x, y are in the table below. 68 10 у0.2 5 719 4 6 5 Let R be the rectangle: 4.0 Sx 4.2 0.0 S y 0.4. Based on the values given in the table, find Riemann sums which are reasonable over and underestimates for f x, y) dA with ΔΧ-0.1 and Δy 0.2. Enter the exact answers. Lower sum Upper sum Values of f (x, y are in the table below. 68 10 у0.2 5 719...

  • Questions 6 to 10 are based on the problem below: Compute the Pearson Correlation Coefficient, r,...

    Questions 6 to 10 are based on the problem below: Compute the Pearson Correlation Coefficient, r, for the following data X Y 2 3 3 1 6 5 4 4 5 2 The Pearson Correlation, r is: Group of answer choices r = 0.43 r = -0.87 r = 0.5 r = -0.72 Flag this Question Question 7 4 pts The correlation is Group of answer choices Medium and negative Large and negative Large and positive Medium and positive Flag...

  • Fisher's exact test can be used as a quick test for correlation between two variables X...

    Fisher's exact test can be used as a quick test for correlation between two variables X and Y, each of which has at least an ordinal scale of measurement. Divide the scatterplot of the N values of (X,Y) with a vertical line at the median of X, and a horizontal line at the median of Y, and count the number of observations in each of the four quadrants. Note that the row and column totals are N/2, and are not...

  • Imagine that the linear correlation between variables X and Y is r = 0.35. Further imagine...

    Imagine that the linear correlation between variables X and Y is r = 0.35. Further imagine that the mean of variable X is 4 and that the mean of variable Y is 6. If we correctly calculated a simple linear regression equation to predict values of Y (based on the corresponding value of X), how much error could we remove from our predictions, relative to just guessing the mean of Y = 6 for everyone in the data set?

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT