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# Proposed Regression Study on IQ Correlation

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Suppose you are given data from a survey showing the IQ of each person interviewed and the IQ of his or her mother. That is all the information you have. Your boss has asked you to put together a report showing the relationship between these two variables. What could you present and why?

##### Solution Summary

We discuss how one might go about analyzing the results of plotting a group of randomly-chosen people's IQs along with those of their mothers.

##### Solution Preview

Let x_i be the IQ of the ith person interviewed and y_i be the IQ of his or her mother. Make a scatter plot of the points (x_i, y_i). Compute and plot the regression line y = a + bx, where a and b are given by the following formulas:

a = (<xy> - <x><y>)/(<x^2> - <x>^2)
b = <y> - ...

##### 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.

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

Tests knowledge of the three main measures of central tendency, including some simple calculation questions.

##### Terms and Definitions for Statistics

This quiz covers basic terms and definitions of statistics.