correlation tutorial

Negative correlation means _______. => points that can be approximated by a line with a positive slope or points that cannot be approximated by a line or points that can be approximated by a line with a negative slope or points can be approximated by a curve..

Write the nature of the correlation shown in the scatter plot. => Strong positive linear correlation or Strong negative linear correlation or Weak positive linear correlation or Weak negative correlation..

Write the nature of the correlation shown in the scatter plot. => Strong negative linear correlation or Weak negative linear correlation or Strong positive linear correlation or Weak positive linear correlation..

Choose the graph wherein the line best fits as the negative correlation for the data points given. => Graph 2 or Graph 4 or Graph 3 or Graph 1..

The scatter plot shows the population of California from 1997 to 2002. What kind of correlation exists between them? => Inverse correlation or No correlation or Negative correlation or Positive correlation..

Which of the following statement(s) is/are true for correlation? I. If the change in one variable affects a change in the other variable, the variables are said to be correlated. II. Correlation coefficient is independent of change of origin and scale. III. If r = 1, t..

What kind of correlation does the statement describe? "As the number of workers increases, the number of days required to complete a work decreases (assume each person work at same rate.)" => Strongly positive correlation or Positive correlation or Negative correl..

What is the lower bound of the correlation coefficient r ? => 1 or - 2 or 0 or - 1..

Which of the following statement(s) is/are true? I. The multiple correlation coefficient denoted by R takes into account all the independent variables and can be computed by using the values of the individual correlation coefficients. II. R can range from - 1 to + 1. III. R can ..