____ 1. Colors: Mauve, indigo, sepia, cerulean | A. Interval | |

____ 2. Top ten names of baby girl names for babies born in 2003 in the United States in descending rank order of popularity: Emily, Emma, Madison, Hannah, Olivia, Abigail, Alexis, Ashley, Elizabeth, Samantha. | B. Ordinal | |

____ 3. Year: 1981, 1987, 1999, 2002 | C. Nominal | |

____ 4. Weight in pounds. | D. Ratio |

Cadence |
---|

81 |

84 |

90 |

84 |

84 |

82 |

78 |

85 |

90 |

82 |

81 |

84 |

90 |

84 |

84 |

82 |

78 |

85 |

90 |

82 |

5. Sketch a Pareto chart of the fall 2004 promotion rates in the following mathematics courses.

Course | promotion rate |
---|---|

MS 090 | 0.603 |

MS 095 | 0.714 |

MS 098 | 0.625 |

MS 100 | 0.600 |

Use the cadence data for this section. Cadence refers to the rate at which a runner's legs turn-over. Beginning runners often have an inefficient, low cadence. Runners train to maintain a cadence of at least 60. This means that the right foot strikes the ground 60 times in a minute. Current thinking is that peak efficiency is probably between 80 and 90. The table is a table of cadence data gathered by the instructor during a joggle in town.

- __________ Find the sample size n for the cadence data.
- __________ Find the minimum cadence.
- __________ Find the maximum cadence.
- __________ Find the range of the cadence.
- __________ Find the median cadence.
- __________ Find the mode for the cadence.
- __________ Find the sample mean cadence.
- __________ Find the sample standard deviation for the cadence.
- __________ Find the sample coefficient of variation CV.
- __________ If this data is to be divided into five bins, what is the width of a single bin?
- Determine the frequency and calculate the relative frequency using five bins (classes, intervals). Record your results in the table provided.
Bins Frequency Relative Frequency **Sum:** - Sketch a
**relative frequency**histogram of the data, labeling your horizontal axis and vertical axis as appropriate.

Statistic or Parameter | Symbol | Equations | Excel |
---|---|---|---|

Square root | =SQRT(number) | ||

Sample mean | x | Σx/n | =AVERAGE(data) |

Sample standard deviation | sx | =STDEV(data) | |

Sample Coefficient of Variation | CV | sx/x | =STDEV(data)/AVERAGE(data) |