correlation coefficient?

Q: The correlation coefficient indicates how strongly the independent variable affects the dependent…

A: Correlation coefficient: The population linear correlation coefficient is denotes as ρ, which…

Q: What are the possible values of the linear correlation coefficient?

A: The correlation coefficient measures the linear relationship between two quantitative variables.

Q: correlation coefficient close to zero is a strong indicator of a positive linear relationship…

A: Correlation is used to measure the relationship between two quantitative variables. The range of…

Q: How do you calculate a coefficient of correlation of two indexes’ returns?

A: Let the two indexes’ returns be A and B.The coefficient of correlation measures the degree to which…

Q: When you solve and get an r value for the correlation coefficient, what information is revealed by…

A: We know that Correlation measures tye association between the two variables.  If two variables move…

Q: how do you solve correlation coefficient? an example would really help.

A: Correlation coefficient gives us an idea about the linear relationship between the two variables.…

Q: 1. A group of data entry clerks had the following results in a keyboarding test: Speed (words/min)…

A:

Q: When can a correlation coefficient based on an observational study be used to support a claim of…

A: When can a correlation coefficient based on an observational study be used to support a claim of…

Q: Show correlation coefficient formula and answer, as well as statement explaining results.

A: Instruction : "Show correlation coefficient formula and answer, as well as statement explaining…

Q: The correlation coefficient always moves between 0 and 1. True or False.

A: The correlation coefficient can be negative, zero or positive.

Q: In regression and correlation, explained variation (r2) represents

A: The explained variation r2 also called as coefficient of determination.

Q: For a set of negatively correlated data, you calculate that 7% of the variation in the dependent…

A: Suppose the given data set is negatively correlated.The coefficient of determination: .

Q: greed and capitalism correlation but not causation what is the lurking variable

A: First, identify whether the individual greedy behaviors that asset such as corrupt privatization…

Q: Listed below are amounts of court income and salaries paid to the town justices. All amounts are in…

A: Given data represents the amounts of court income and salaries paid to the town justices.…

Q: Correct The following table compares the completion percentage and interception percentage of 5 NFL…

A: Let X = Completion PercentageY = Interception Percentage…

Q: Correlation: If the slope of the regression equation is negative, then the linear correlation…

A:

Q: True or False? The sample correlation coefficient is equal to the covariance of x and y divided by…

A: Spearman’s correlation coefficient: The correlation between x and y is given as follows:

Q: Outliers can change both the direction and strength of a correlation coefficient. True False

A: Given data:   Outliers can change both the direction and strength of a correlation coefficient.…

Q: What is the value for r (correlation coefficient)?

A:

Q: True or False. If Excel can find a linear fit for the data the correlation coefficient and…

A: The objective is to interpret the relevance of the correlation coefficient and coefficient of…

Q: Three main characteristics of a correlation coefficient include all of the following except: A. It…

A: The three main characteristics of correlation coefficient are - 1) The correlation coefficient can…

Q: Here are the number of hours that 10 Math 121 students spent studying for a final exam(x) , and…

A: Given : Hours Score 7 70 8 76 4 57 9 77 13 91 5 66 9 82 6 64 16 96 3 50

Q: The table below gives the number of hours spent unsupervised each day as well as the overall grade…

A: Assume that x defines the hours unsupervised (independent variable) and y defines the overall grades…

Q: (c) Find the value of the correlation coefficient between systolic blood pressure and diastolic…

A: (c) Let x be the systolic blood pressure, and y be the diastolic blood pressure. The sums are, x…

Q: Positive or negative correlation? the ciameter of an apple and its weight.

A: There should be positive correlation between diameter of apple and its weight.  Because if we…

Q: The coefficient of determination is the square root of the correlation coefficier O is the same as…

A: The statement is given.

Q: Complete the following five steps to calculate r, and give each of your answers precise to two…

A: Step 1: The z-score for each x-value is, x z-score 8 8-134.359=-1.15 15 15-134.359=0.46 16…

Q: From a regression equation r2= 0.39 and the slope = -2.8 What is the linear correlation coefficient…

A: Given information: The value of the slope is b=-2.8. The value of r2=0.39.

Q: What does the square of the linear correlation coefficient measure (rxr)

A:

Q: d) Calculate the coefficient of determination and the coefficient of correlation, by applying the…

A:

Q: How are linear correlation tests and t-tests similar?

A:

Q: The correlation coefficient ranges from which two values?

A: The correlation coefficient ranges from which two values

Q: is finding a linear correlation coefficient the same as finding the correlation coefficient? if not,…

A: The type of coefficient to be calculated would depend on whether the variables are categorized as…

Q: Please give an example of an IMPOSSIBLE correlation coefficient.

A: An impossible correlation coefficient means there is no relationship between the two variables. When…

Q: The table below gives the list price and the number of bids received for five randomly selected…

A: The number of bids would be the predictor variable and price in Dollars would be the predictor…