Correlation Coefficient
Not what you're looking for?
Calculate the correlation coefficient r, letting Row 1 represent the x-values and Row 2 the y-values. What effect does switching the variable have on r?
Row 1 Row 2
10 151
25 179
32 183
47 198
54 180
63 180
75 117
1. Calculate the correlation coefficient r, letting Row 1 represent the x-values and Row 2 the y-values.
r = ???? (round to three decimal places)
2. Calculate the correlation r, letting Row 2 represent the x-values and Row 1 the y-values.
f = ???? (round to three decimal places)
3. What effect does switching the variables have on the correlation coefficient?
The correlation (increases, changes sign, remains unchanged or decreases) when the x-values and y-values are switched.
Purchase this Solution
Solution Summary
The solution contains the determination of the correlation coefficient for a set of data.
Purchase this Solution
Free BrainMass Quizzes
Measures of Central Tendency
Tests knowledge of the three main measures of central tendency, including some simple calculation questions.
Know Your Statistical Concepts
Each question is a choice-summary multiple choice question that presents you with a statistical concept and then 4 numbered statements. You must decide which (if any) of the numbered statements is/are true as they relate to the statistical concept.
Measures of Central Tendency
This quiz evaluates the students understanding of the measures of central tendency seen in statistics. This quiz is specifically designed to incorporate the measures of central tendency as they relate to psychological research.
Terms and Definitions for Statistics
This quiz covers basic terms and definitions of statistics.