Analyzing Bivariate Relationships
Not what you're looking for?
1. For the following data on 10 persons, construct a scatterplot showing the relationship between age and number of children, and describe the relationship in verbal terms.
Person (i) Age
(X1) Number of
Children (Yi)
1 42 5
2 26 2
3 38 2
4 23 1
5 21 0
6 19 0
7 79 6
8 25 2
9 75 4
10 67 3
2. Suppose social psychologist collects the following data from five subjects: their scores on a test measuring the extent to which they trust other people and the number of altruistic acts they performed in the last month. Create a bivariate regression equation for these variables, treating altruistic acts as the dependent variable.
Subject Trust Altruistic acts
1 70 5
2 85 8
3 92 12
4 64 3
5 79 7
3. For the data in question 1, calculate the correlation coefficient, the coefficient of determination, and the coefficient of non determination. What can you conclude?
Purchase this Solution
Solution Summary
The solution analyzes bivariate relationships between age and number of children.The relationship is described.
Solution Preview
http://www.physicalgeography.net/fundamentals/3h.html
1. For the following data on 10 persons, construct a scatter plot showing the relationship between age and number of children, and describe the relationship in verbal terms.
Person (i) Age
(X1) Number of
Children (Yi)
1 42 5
2 26 2
3 38 2
4 23 1
5 21 0
6 19 0
7 79 6
8 25 2
9 75 4
10 67 3
Solution:
Scatter plot of Age and number of child data does indicates any pattern in the data so the distribution of the data points indicates a positive linear relationship between the two variables.
2. Suppose social psychologist ...
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.
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.
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.