A professor wants to see the relationship between class size and final exam performance.

Class Size (X) |
Final Exam (Y) |

25 |
80 |

14 |
98 |

33 |
50 |

28 |
82 |

20 |
90 |

The following have whole number answers. As such please write only the number and not any decimal. For example write “1” and not “1.0”. If any answer is negative, put the negative sign in front of the answer. For example write “-1”.

What is ΣXY?

What is ΣX?

What is ΣY?

What is SP?

What is SSx?

What is SSy?

What is the Pearson Correlation (r)?