Search: statistics/correlation relations

Number of results: 14,542

statistics/correlation relations
We have no access to your scatter diagram.
Tuesday, February 14, 2012 at 12:39am by PsyDAG

Statistics
The correlation is 0.14. The Pearson r is the correlation coefficient and is a measure of correlation, which can be positive or negative. The closer the correlation is to 0, the weaker it is. The closer to +1 or -1, the stronger it is. If you have a correlation of +1 or -1, ...
Saturday, June 27, 2009 at 3:26pm by MathGuru

statistics
Given the following scatter diagram , the sample correlation coefficient r: Has a positive linear correlation Has a negative linear correlation. Has little or no correlation. Looks close to + 1.00
Thursday, August 19, 2010 at 6:40pm by Karen

stats
For a positive correlation, both variables increase/decrease together. For a negative correlation, one variable increases while the other decreases. I'll let you suggest the causal relations. Does T cause E, E cause T, or some third factor effect both?
Saturday, April 27, 2013 at 10:28pm by PsyDAG

statistics
Make up a scatter diagram with 10 dots for each of the following situations: 1. perfect positive linear correlation, 2. large but not perfect positive linear correlation, 3. small positive linear correlation, 4. large but not perfect negative linear correlation, 5. no ...
Sunday, March 18, 2012 at 11:27pm by Dawm

statistics/correlation relations
25 Marks: 1.00 The value of a correlation is reported by a researcher to be r = -0.5. Which of the following statements is correct? Choose one answer. a. The x-variable explains 50% of the variability in the y-variable. b. The x-variable explains -50% of the variability in the...
Tuesday, February 14, 2012 at 12:39am by nancyjean

Statistics
Of you perceived a linear model, then the coefficient of correlation was .7, a strong correlation.
Monday, August 8, 2011 at 2:48pm by bobpursley

Statistics
How would you interpret the findings of a correlation study that reported a linear correlation coefficient of +0.3?
Wednesday, July 4, 2012 at 7:07pm by Jane

statistics
Selected students means you are dealing with a sample from a population. The best you can do with a sample is to estimate the correlation coefficient of the population, or the correlation coefficient of the sample. See the formulas and examples from: http://stattrek.com/...
Saturday, April 6, 2013 at 5:16pm by MathMate

Statistics
How would you interpret the findings of a correlation study that reported a linear correlation coefficient of − 1.34?
Tuesday, October 11, 2011 at 8:21pm by robyn

Statistics and Research Methods
Here are a few hints: The Pearson r is the correlation coefficient and is a measure of correlation, which can be positive or negative. The closer the correlation is to 0, the weaker it is. The closer to +1 or -1, the stronger it is. If you have a correlation of +1 or -1, then ...
Thursday, April 11, 2013 at 7:48pm by MathGuru

Statistics
Suppose the correlation between two variables is -0.57. If each of the y-values is multiplied by -1, which of the following is true about the new scatterplot? It slopes up to the right, and the correlation is -0.57 It slopes up to the right, and the correlation is +0.57 It ...
Tuesday, December 18, 2012 at 10:56am by Jill

statistics
Suppose the correlation between two variables is -0.57. If each of the y-values is multiplied by -1, which of the following is true about the new scatterplot? It slopes up to the right, and the correlation is -0.57 It slopes up to the right, and the correlation is +0.57 It ...
Thursday, November 15, 2012 at 10:26am by joey

Statistics
Yes, using http://easycalculation.com/statistics/correlation.php I get .8519
Saturday, February 5, 2011 at 4:48pm by Damon

Statistics
In case you don't already know this, with a positive (+) correlation, both variables tend to increase/decrease together. With a negative (-) correlation, one variable increases, while the other decreases. I hope this helps a little more. Thanks for asking.
Saturday, June 27, 2009 at 3:26pm by PsyDAG

Algebra
2. Find the value of x^3 +2x^2 -3 when x =3 Answer-42 12. What type of correlation would you expect between the number of minutes a candle burns and the height of the candle? a. no correlation b. positive correlation c. negative correlation d. equal correlation Answer-c 13. ...
Sunday, August 7, 2011 at 5:06pm by lizzie

statistics
http://easycalculation.com/statistics/learn-correlation.php
Wednesday, December 21, 2011 at 2:34am by PsyDAG

statistics in psychology
11. Make up a scatter diagram with 10 dots for each of the following situations: (a) perfect positive linear correlation, (b) large but not perfect positive linear correlation, (c) small positive linear correlation, (d) large but not perfect negative linear correlation, (e) no...
Monday, July 25, 2011 at 10:25am by desiree

math
interpret an r value of -0.82. a)strong negative correlation B)weak negative correlation C)strong positive correlation D)no correlation
Friday, November 13, 2009 at 12:01pm by princess

Psychology Statistics
2 For a sample of n = 20 individuals, how large a Pearson correlation is necessary to be statistically significant for a two-tailed test with  = .05? 3 The Pearson correlation is calculated for a sample of n = 25 individuals. What value of df should be used to ...
Friday, April 26, 2013 at 8:19am by Chioma

Economics
Please correct if I have stated the right correlation to the following relationships: a) volume of auto traffic and auto accident rate -> 0 correlation b) pesticide and crop yield -> negative correlation c) consumption and GDP -> positive correlation
Tuesday, January 25, 2011 at 9:45pm by Anonymous

math
I need a definition for this constant rate of change when graphing in mathematics and for Positive and Negative correlation and also what the pattern is in this a) 1000, 100, 10, 1 I'll give you a definition for positive and negative correlation. Correlation is a linear ...
Wednesday, January 10, 2007 at 5:21pm by austin

statistics
If the correlation coefficient is -0.54, what is the sign of the slope of the regression line? - As the correlation coefficient decreases from 0.86 to 0.81, do the points of the scatter plot move toward the regression line, or away from it
Thursday, October 4, 2012 at 11:01am by mom

college statistics
if the correlation co-efficient is o.32 what is the sign of the slope regression line as the correlation co efficient decreases from 0.78 to 0.71 do the oints of the scatter plot move toward the regression line or away from it
Saturday, May 26, 2012 at 10:19am by melba

Math-Algebra II
How would you interpret the findings of a correlation study that reported a linear correlation coefficient of − 1.34? The only thing I know is that it represents a negative correlation. Please shed any light you can.
Wednesday, January 26, 2011 at 10:25pm by Michelle

Statistics
1.What is the p value (“significance level”)? What does this p value mean? 2.How does the n (sample size) of this sample affect the r and p values? 3.Is there a relationship between assertiveness and whether one holds anger “in”? Descriptive Statistics Mean...
Wednesday, June 16, 2010 at 3:59am by Donald

Statistics
foofy computes the correlation between an individual's physical strength and his or her college grade poing average. Using a computer, the correlation for a sample of 2000 people is r(1998)=+.08, p=<.0001. she claims this is a useful tool for predicting which ...
Sunday, July 10, 2011 at 9:58am by K

math
Yes, but some scientists will refer to r^2 as the correlation coefficient while others will refer to r as the correlation coefficient. So, what you should do is take the square root and say something like "the correlation coeffcient is given by r = 0.469". And then ...
Thursday, March 6, 2008 at 5:00pm by Count Iblis

Statistics
Why do we need to distinguish between strong and weak correlation of data sets using best-fit lines? When a correlation has been established between the two data sets, how is it linked to causality? Please provide examples to support your answer.
Tuesday, June 1, 2010 at 7:09pm by immanuel

Statistics - Correlation Coefficient/Regression
y = -15.4 + 14.4x the correlation coefficient is correct because it is geomatric mean of two regression coefficient the second regression coefficient is 0.066428.
Saturday, June 21, 2008 at 8:35pm by saqib

statistics
Information missing, so I cannot help with the first part. Positive correlation indicates that both variables increase and decrease together. A negative correlation indicates one variable increases while the other increases. Thus both the third and fourth choice are correct.
Friday, August 20, 2010 at 4:17pm by PsyDAG

math
Construct a scatter plot for the given data. Determine whether there is a positive linear correlation, negative linear correlation, or no linear correlation.
Sunday, December 6, 2009 at 12:18pm by jen

statistics
Here's a hint to help you choose an answer. You can probably assume there is a strong correlation between number of man hours worked and number of units of work completed. The longer one works, the more work gets done (hopefully!). Now all you have to determine is whether ...
Tuesday, August 2, 2011 at 2:59pm by MathGuru

statistics
y(predicted) = -34.92903226(X) + 86023.07742, where X = Year (1978, 1979, etc.) The scatter plot slopes downward. Correlation = - 0.633023997, which is consistent with a downward sloping plot. Also, the correlation is fairly strong at -0.633 suggesting the trend in iron ...
Tuesday, November 22, 2011 at 7:47pm by fixit

statistics
For problems 12 to 14, do the following: (a) Make a scatter diagram of the scores; (b) describe in words the general pattern of correlation, if any; (c) figure the correlation coefficient; (d) figure whether the correlation is statistically significant (use the .05 ...
Saturday, January 8, 2011 at 4:11pm by kamelia

Math
Jade counted the number of the students on each sports time at her school and the number of wins the team had last season. If she displays her data on a scatter plot, what type of relationship will she most likely see between the number of students on a team and the number of ...
Tuesday, October 18, 2011 at 8:45pm by Please help

statistics
The data below are the final exam scores of 10 randomly selected statistics students and the number of hours they studied for the exam. Calculate the correlation coefficient r.
Wednesday, September 28, 2011 at 6:05pm by milly

statistics
Do you think there is a correlation between CEO salaries and the degree of success of a company? If you were to take a sample of companies with comparable size, market capitalization, and product category, and plot CEO salaries against the net profit of their respective ...
Saturday, December 17, 2011 at 6:45pm by Mark

STATISTICS
A) If a regression experiment has correlation coefficient r= 0.75, what precent of total variation is explained by the regression? B) if 85% of total variation is explained by the regression, and there is an inverse relationship between y and x, then what is the correlation ...
Sunday, April 17, 2011 at 6:12pm by SROBSON

social studies
Although the Chesapeake and New England colonies differed in many ways, relations with Native Americans followed a similar course in both regions. Why? What were the biggest factors in relations between the two sides? Did relations change over time and why?
Saturday, September 10, 2011 at 7:55pm by Tim

statistics
A professor is interested in knowing the correlation, if any, of students’ scores on the first and second exams given in his class. Test 1 Test 2 92 86 90 87 89 85 82 90 88 79 92 90 100 92 91 84 Is there a significant correlation? Explain its statistical significance, if ...
Sunday, February 12, 2012 at 8:09pm by John

statistics
Research reports a correlation of +0.8 between math achievement and math aptitude it also reports a correlation of -0.8 between math achievement and a math anxiety. Which interpretations is most c?orrect
Wednesday, September 5, 2012 at 1:28am by Gee

statistics
has a negative linear correlation
Thursday, August 19, 2010 at 6:40pm by alissa

Math Statistics
Correlation varies ± 1.
Thursday, May 19, 2011 at 4:53pm by PsyDAG

statistics
Have tried a correlation coefficient?
Thursday, May 10, 2012 at 9:27pm by PsyDAG

statistics
No, the value of a correlation coefficient can be between 0 and ± 1.
Thursday, May 19, 2011 at 11:24am by PsyDAG

statistics
The value of the correlation coeficient can be between 0 and 1.
Thursday, May 19, 2011 at 11:24am by jessica

Statistics
The value of the correlation coefficient can be between 0 and 1.
Tuesday, May 17, 2011 at 11:20pm by Matt

statistics
What does it mean when we say, "Correlation is not a causality?"
Sunday, August 9, 2009 at 12:37am by Bulldog

Statistics
In a study on caffeine and stress, college students indicated how many cups of coffee they drink per day and their current stress level on a scale of 1 to 10. The table shows the survey results. Using a web-calculator, obtain the appropriate correlation coefficients. Number of...
Saturday, February 5, 2011 at 4:48pm by SHelia

Statistics
Using a statistics calculator, I found correlation coefficient r = 0.972; therefore, the coefficient of determination would be r^2 (note: ^2 means squared). Your rounded answer of 0.945 would then be correct.
Monday, June 14, 2010 at 9:30pm by MathGuru

statistics
Determine and interpret Pearson’s correlation coefficient.
Friday, March 22, 2013 at 7:59am by sello

statistics
Select the best interpretation of the correlation coefficient r = 0.
Thursday, May 19, 2011 at 11:10pm by Eric

Statistics
Calculate according Permutation and Correlation: 8 8 7 6 8 7 6 5 P P P P C C C C 3 4 6 1 3 5 2 0
Saturday, April 9, 2011 at 4:44pm by Pavlos Cs

statistics
if the correlation coefficient is 0.790, what is the explained variation
Saturday, July 24, 2010 at 5:13pm by Anonymous

Statistics
From my calculations: r = 0.923 Strong positive correlation.
Monday, June 14, 2010 at 3:22pm by MathGuru

statistics/psych
Find TWO media examples of two types of correlations (explained below). You will have to do some research to find these. Next: (1) Find one media example (don�t make up your own) of a correlation that could be argued to be spurious (third variable). Explain your ...
Wednesday, November 16, 2011 at 6:36pm by ashley

Math
Positive correlation means both variables increase/decrease together. Negative correlation means one variable increases while the other decreases. What is the consistent difference between the y values to determine the missing value? How good is the predictability of y from x...
Thursday, November 10, 2011 at 7:40pm by PsyDAG

statistics
Do a correlation. http://www.google.com/search?client=safari&rls=en&q=correlation&ie=UTF-8&oe=UTF-8
Wednesday, September 7, 2011 at 10:39am by PsyDAG

Statistics
The value of the correlation coefficient can be between 0 and 1.True or false?
Wednesday, November 7, 2012 at 9:20pm by jassi

Statistics
Select the best interpretation of the correlation coefficient r = -.87
Saturday, May 21, 2011 at 12:11am by Scott

statistics
find the value for the correlation coefficient r. x 5 1 4 2 3 y 5 10 12 4 8
Wednesday, April 29, 2009 at 10:43am by yorkie16

math
Not sure what your are asking, but I will give an answer. 1. positive correlation 2. negative correlation
Wednesday, February 6, 2013 at 5:40am by PsyDAG

statistic
Explain the concept of correlation and how to interpret correlation coefficients of 0.3,0, and -0.95
Sunday, August 7, 2011 at 9:57am by Toha

statistics
calculate both the pearson and spearman correlation coefficient for the data below. state whether ther are significant? writ a brief statement to explain the results generated by each correlation. self-esteem 10.00, 9.00,8.00,7.00,7.00,6.00,6.00,6.00,4.0,4.00. grades 83.00,97....
Sunday, April 24, 2011 at 7:03pm by ryee

statistics
If you have the data, you would probably use a correlation coefficient.
Sunday, May 5, 2013 at 7:35pm by PsyDAG

statistics
A correlation of 0 always means there is no relationship between x and y true or false?
Tuesday, September 18, 2012 at 11:21pm by Gee

Statistics
Calculate the Pearson product-moment correlation for the data below. X 3 4 2 1 Y 5 5 3 4
Tuesday, August 28, 2012 at 6:12pm by StudentD

statistics
This means a strong positive correlation between the two scores.
Monday, July 25, 2011 at 5:31pm by MatGuru

Math Statistics
True or false? The value of the correlation coefficient can be between 0 and 1.
Thursday, May 19, 2011 at 4:53pm by Bill

Statistics
The larger the value of the slope, the steeper it is. The correlation will also be large as well.
Thursday, April 15, 2010 at 7:47pm by MathGuru

Statistics
Yes, predictions can be made from correlations. For example, one can find predicted values via this formula using correlation: predicted y = (rSy/Sx)X - (rSy/Sx)xbar + ybar ...where r = correlation, Sy = sd of y, Sx = sd of x, and X is the variable. Also: xbar = mean of x; ...
Monday, November 30, 2009 at 7:41pm by MathGuru

social psy
) Researcher wants to look at the correlation between class attendance and grade in class (higher numbers indicating a higher grade). The researcher found the following result r = .82. The correlation coefficient tells researchers two pieces of information, the strength of the...
Monday, October 3, 2011 at 2:23pm by deb

stats
For positive correlation both variables increase/decrease together. For negative correlation, one variable increases, while the other decreases. If there is a correlation significantly greater than chance, either one variable causes the other or a third variable might be ...
Sunday, April 28, 2013 at 1:43pm by PsyDAG

Statistics
13.19 (a) Generate a correlation matrix for your predictors. Round the results to three decimal places. (b) Based on the correlation matrix, is collinearity a problem? What rules of thumb (if any) are you using? Correlation Matrix F O E A F Floor 1.000 Offices .823 1.000 ...
Monday, October 4, 2010 at 7:42pm by Pat

statistic
what type of correlation would you expect to exist between people's height and their shoe size? My answer is a positive correlation.
Thursday, July 12, 2012 at 6:25pm by bria

Statistics
If the correlation coefficient is 0.790, what is the explained variation? A. 37.6% B. 62.4% C. 79% D. 21%
Sunday, December 11, 2011 at 10:47pm by Ashleigh

Math-Statistics
draw scatterplots one for which the pearson correlation coefficient is r=-1 and r=1 Stuck on how to get started
Sunday, October 3, 2010 at 3:42am by noell

statistics
For correlation, r^2 is a measure of effect size. It's the correlation coefficient squared and basically represents the proportion of variability that is shared by two variables. The r^2 value may show this effect to be strong or weak. As an example, suppose we have r^2...
Friday, August 1, 2008 at 4:49pm by MathGuru

Statistics
A quiz consists of 10 multiple choice questions. Each question is marked either “right” or “wrong.” Each right answer gets 5 points, and 1 point is taken off for each wrong answer. The correlation between the number of right answers and the number of wrong ...
Friday, March 15, 2013 at 12:46pm by Emily

Public Relation
Why is Public Relations Important? At its core, public relations revolves around this universal truth: people act based upon their perception of facts. By managing, controlling, or influencing people's perceptions, public relations professionals hope to initiate a sequence...
Friday, October 26, 2012 at 6:31am by Allyson

Statistics
True or False: If the value of the correlation, r, is zero then there is no association between the two quantative variables.
Thursday, December 1, 2011 at 2:48pm by Jay

Statistics
Assuming that you have a moderately strong correlation between the two variables (which you do not indicate), AOA.
Thursday, February 17, 2011 at 7:39pm by PsyDAG

Statistics
Make a scatter diagram with 10 dots showing a perfect positive linear correlation
Wednesday, July 15, 2009 at 3:00am by Anonymous

Statistics
Suppose a study found a correlation coefficient r = -0.61 between the gender of a worker and their income. What can you conclude?
Tuesday, January 4, 2011 at 7:03am by Lisa

STOR
Each of the following statements contain a blunder. Explain in each case what is wrong. a) There is a high correlation between the age of American workers and their occupation. b) we found a high correlation (r=1.19) between students rating of faculty teaching and ratings made...
Thursday, September 6, 2012 at 7:16pm by ami

Research and Statistics
In a study on caffeine and stress, college students indicated how many cups of coffee they drink per day and their current stress level on a scale of 1 to 10. The table shows the survey results. Using a web-calculator, obtain the appropriate correlation coefficients. Number ...
Saturday, September 11, 2010 at 10:39am by Jenn

statistics
There are several variations of the correlation coefficient formula. Find the one that will use the data given in your problem, then calculate r.
Tuesday, September 25, 2012 at 9:01am by MathGuru

statistics
What particular measure of correlation would be most appropriate for use with two variables measured at an ordinal level?
Thursday, August 30, 2012 at 5:00pm by Pat

psych
This looks like correlation. No experiments were done, but the researchers took existing statistics and correlated them to produce a conclusion.
Sunday, February 14, 2010 at 4:21pm by Ms. Sue

american history
Was it Ivy Lee or Henry Ford that pioneered the field of corporate public relations? Ive read that Ivy is considered one of the founding fathers of the public relations but then I also read that Henry was the first major industrialist to use the public relations concepts!
Thursday, September 27, 2012 at 11:01pm by Shawna

Statistics: Calculate a Pearson's r
Once you determine the correlation coefficient from a Pearson's r, square the correlation coefficient to find the Coefficient of Determination. The Coefficient of Determination shows the strength of the relationship between two variables. The ratio of explained variance to...
Tuesday, October 18, 2011 at 3:25pm by MathGuru

stastics- correlation and regression
When x increases by 1, y increases by 1/4. 1 is correct, but if both variables increase, is that a positive or negative correlation?
Tuesday, October 19, 2010 at 1:31am by PsyDAG

statistics
It goes from upper left to lower right, so what would the sign be? There is more variability as the correlation coefficient decreases, so away.
Thursday, October 4, 2012 at 11:01am by PsyDAG

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