# Stats 2

rename
immysheep's
version from
2017-06-17 13:19

## Section

Question | Answer |
---|---|

Univariate visualisation | Data with only one variable, how the observed values distribute |

Univariate visualisation examples | Histogram, bar plot, box plot, ECDF |

Bivariate visualisation | More than one variable, association between variables |

Bivariate visualisation examples | QQ plot, scatter plot, mosaic plot |

Histogram bin size | The change in x |

Histogram number of bins | The number of intervals along the x axis |

Box plot, long tail to the right | Positive skew |

Box plot, long tail to the left | Negative skew |

ECDF | plots each unique value vs the percentage of values in the sample that are less than or equal to it. |

QQ plot | Comparing two distributions, plots the quantiles of each data set against each other then uses a 45 degree reference line to see if they come from a population with the same distribution. |

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