# Correlation, Prediction, Coefficients

Not what you're looking for?

An experiment was done to see if there was any correlation between the volume of water in a fish tank and the average length to which goldfish grew when they were hatched and raised in that tank. Here are the results. Draw a scattergram and compute r.

Fish Tank Volume, in Gallons Average Length of Fish, in Inches

0.5 1.8

1 2.1

2 2.2

4 2.9

5 3.3

PLEASE SHOW ALL WORK AND FULLY EXPLAIN EACH STEP. Thank you.

##### Purchase this Solution

##### Solution Summary

An experiment was done to see if there was any correlation between the volume of water in a fish tank and the average length to which goldfish grew when they were hatched and raised in that tank. Here are the results. Draw a scattergram and compute r.

Fish Tank Volume, in Gallons Average Length of Fish, in Inches

0.5 1.8

1 2.1

2 2.2

4 2.9

5 3.3

PLEASE SHOW ALL WORK AND FULLY EXPLAIN EACH STEP. Thank you.

##### Solution Preview

Scattergrams

The simplest thing we can do with two variables that we believe

are related is to draw a scattergram. A scattergram is a simple

graph that plots values of our dependent variable Y and independent

variable X. Normally we plot our dependent variable on the vertical axis and

the independent variable on the horizontal axis.

Just from our scattergram, we can sometimes get a fairly good idea

of the ...

##### 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.

##### Terms and Definitions for Statistics

This quiz covers basic terms and definitions of statistics.

##### 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.