Calculate the linear regression, correlation coefficient, and estimate an average for the data set.

distance in meters | heart rate |
---|---|

105 | 142 |

125 | 110 |

115 | 120 |

140 | 98 |

145 | 102 |

160 | 89 |

170 | 72 |

140 | 100 |

130 | 107 |

105 | 113 |

## Step 1

In order to create a table that represents this data, click anywhere in ClassPad to bring up the ClassPad menu, and click on the Statistical Data icon.

## Step 2

Enter the data, changing the range to 0–11 (from the bottom to the top.)

## Step 3

To see the calculations for the mean, correlation coefficient, and more, select the data in the table and click Calculation, then Two-Variable in the popup menu.

## Step 4

Change

## Step 5

To see the scatter plot, select the data in the table, click Graph in the pop-up menu and then select Scatterplot.

## Step 6

Again, change

## Step 7

To see the linear regression graph, select the data in the table and click Regression in the pop-up menu. Then select Linear Regression.

## Step 8

A linear regression line should appear on the graph.