**Graphing and Correlation (7 points total)**

- If variables change in the same direction, what type of correlation is this called?

a. | Positive correlation |

b. | Negative correlation |

c. | Positive causation |

d. | Negative causation |

- When interested in examining how one variable changes in relation to another, which of the following descriptive statistics would you want to use?

a. | Mean |

b. | Variance |

c. | Correlation |

d. | Standard Deviation |

- Which of the following refers to a correlation between two variables?

a. | Bicorrelate |

b. | Bivariate |

c. | Two-way variance |

d. | Two-way analysis |

- Which of the following correlations would be interpreted as a weak relationship?

a. | -.26 |

b. | -.46 |

c. | -.66 |

d. | -.86 |

- Which of the following is the strongest correlation?

a. | .23 |

b. | .87 |

c. | .49 |

d. | -.91 |

** **

- If X increases in value as Y decreases in value, what type of correlation exists?

a. | Positive |

b. | Negative |

c. | Neutral |

d. | None |

- If you were interested in tracking or checking the trend of your GPA during the time you were in high school, which of the following might you use?

a. | Bar chart |

b. | Line chart |

c. | Pie chart |

d. | Histogram |

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