Q.4. Calculate correlation between X and Y. X 3 4 7 Y 4 6 12 5 69
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A: Correlation is the relationship between two variables x and y.
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A: (a) Use EXCEL to construct the scatter plot. EXCEL procedure: Go to EXCEL Go to Insert menu…
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Q: Which of the following correlation coefficients represents the strongest linear relationship? (1)…
A: Correlation coefficients are used to measure how strong a relationship is between two variables.
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Q: Illustration 15.10. Find the coefficient of correlation between X and Y, 1 2 3 4 5 7 8. Y 12 11 13…
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Q: Which of the following values represents the strongest correlation between two variables? r = -0.92…
A: We have given the following statement about correlation.
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Q: a) Find Correlation coefficient (4m) b) Draw a Scatter plot (1m)
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Q: 2 4 8 Y 3 2 Find the correlation from the above data. O a. 0.41 O b. None O c. 0.54 O d. 0.31
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Q: Assume that the computed correlation between x and y is -0.13. Suppose we define new variable s = -x…
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Q: me 6. Calculate Coefficient of Correlation between the values of X and Y given below: 68 Values of…
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Q: Which of the following statements is a true condition that must be met prior to measuring the…
A: Correlation between two variables measure the strength and direction between two variables. It…
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A: # given scatter plot between the data values x and y then which one of them show strongest linear…
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A: MCQs
Q: If Ꜫx=12, Ꜫy=42, Ꜫx²=46, Ꜫy²=542, Ꜫxy=157and n =4, find the correlation coefficient,
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Q: Assume that the computed correlation between x and y is -0.13. Suppose we define a new variable s=…
A: Given that the correlation between x and y is -0.13. s=-x and t=y+6
Q: 44- Which of the following technique is used to find the relationship between two variables? a.…
A: 44- Which of the following technique is used to find the relationship between two variables? a.…
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A: iii) option is correct (5, 10)
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A: Given : Three diagram :
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A: Solution r be the correlation coefficient
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Q: Which of the following technique is used to find the relationship between three variables? a. Zero…
A: Here the variables are 3
Q: Campute the correlation co-efficient between the variables X and Y represented b) following table: X…
A: The formula for the calculation of correlation co-efficient is r=n∑xy−∑x⋅∑yn∑x2−∑x2×n∑y2−∑y2.
Q: Which of the following statements does not contain a mistake? A. The correlation between…
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A: We know that. If r is equal to +1 then there are strong positively correlation and If r is equal to…
Q: A. 4. Calculate Coefficient of Correlation from the following results : n = 10, EX = 100, EY = 150,…
A: Given data is n=10∑x=100∑y=150∑(x-10)2 =180 ∑(y-15)2 = 215∑(x-10)(y-15)=60
Q: Which of the following statements regarding the coefficient of correlation is true? a. It ranges…
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Q: 5.110 Suppose that Y; and Y2 have correlation coefficient p = .2. What is is the value of the…
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Q: Which of the following correlations represents the strongest possible relationship between X and Y?:…
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Q: - Find the correlation coefficient. X Y 11 24 15…
A: Given data, X Y X*Y X*X Y*Y 1 24 264 121 576 15 32 480 225 1024 17 35 595 289 1225 19 41…
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A: Correct option is D
Q: *18 Calculate Coefficient of Correlation between x and y. 4 6. y: 9. 13
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Q: If S=234, S. XY = 244 S=255, then the value of correlation coefficient 'r' is XX YY
A: We have to find value of r.
Q: 7. Calculate the linear correlation coefficient r, for temperature (x) and number of ice cream cones…
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Q: What is the Strength and direction of each correlation below: r = +1.0 r = -3.0 r = +0.75
A: According to our guidelines, we can answer only three subparts, or the first question and the rest…
Q: Below is data for two variables, X and Y. Answer the questions that follow. X Y X-MX Y-MY (X-MX)2…
A: Given the data for two variables, X and Y as X Y X-MX Y-MY (X-MX)2 (Y-MY)2 (X-MX)(Y-MY) 3 3 -2…
Q: Compute the correlation coefficien x16 52 3 y1 365 4
A: x = 1,6,5,2,3 y= 1,3,6,5,4
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- What is the r2value if the obtained correlation is r= 0.70? a. 0.049 b. 0.49 c. 1.40 d. Cannot tell without additional informationAssume that the computed correlation between x and y is -0.13. Suppose we define a new variable s= -x and t= y + 6. What is thecorrelation between s and t?A set of n=38 pairs of x and y scores has SSx=150 SSy=25 Ex=50 Ey=160 and EXY=200.What is the Pearson correlation for these scores?
- A researcher obtained the following results for a study: n = 44, SSy = 340603, SSx = 33712, B̂ = 2.0025 Find the correlation for these results?Give interpretation of the below? Correlation ρxy≈1the number of rubber bands used and the distance, incentimeters, of her jump. When they created a scatterplotthe relationship appeared to be linear, and the correlationwas r = 0.996. After discussing these results, the teacherinstructed the students to convert the distances to inches.What effect will this have on the correlation between thetwo variables?a) Because 1 cm = 0.393701 inches, the correlationwill become .392126.b) Because 1 cm = 0.393701 inches, the correlationwill become 2.5298.c) Because only the length measurements have changed,the correlation will decrease substantially.d) Because changing from centimeters to inches doesnot affect the value of the correlation, the correlationwill remain 0.996. e) Because inches is a much more common measure-ment for distance in the United States, the relation-ship between the data will be stronger and thus the correlation will increase.
- A)I will test the claim that there is no correlation (start with the Claim and finish with the conclusion) The best estimate The P value is (big/small) so I have to (either give the average of the y's or plug in the x into the y-=mx+b)1.Determine the linear correlation coefficient between speed and distance. ( round to three decimal places as needed). R =Suppose that for variables x and y, we find that the correlation coefficent r= .750. Assuming that α=.05α=.05, what is the minimum number of data points n, that is requried so that a signficant linear correlation is present? a. n=6 b. n=7 c. n=8 d. It cannot be determined from the given data