# Chapter 13: Question Preview (ID: 6838)

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For the set of data 12, 13, 15, 15, 16, 19 determine the mean. |
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a) 13 | b) 14 | c) 15 | d) 16 | |

For the set of data 12, 13, 15, 15, 16, 19 determine the mode. |
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a) 13 | b) 14 | c) 15 | d) 16 | |

For the set of data 12, 13, 15, 15, 16, 19 determine the median. |
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a) 13 | b) 14 | c) 15 | d) 16 | |

For the set of data 12, 13, 15, 15, 16, 19 determine the range. |
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a) 31 | b) 15.5 | c) 10 | d) 7 | |

For the set of data 12, 13, 15, 15, 16, 19 determine the midrange. |
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a) 31 | b) 15.5 | c) 10 | d) 7 | |

For the set of data 12, 13, 15, 15, 16, 19 determine the midrange. |
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a) 2.45 | b) 2.24 | c) 1.414 | d) 1.29 | |

The average age of students at Tri-County Community College is normally distributed with a mean of 22.1 and a standard deviation of 2.3. What percent of students are between 20 and |
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a) 79.7% | b) 61.6% | c) 29.7% | d) 18.1% | |

The average age of students at Tri-County Community College is normally distributed with a mean of 22.1 and a standard deviation of 2.3. What percent of students are older than 23? |
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a) 34.8% | b) 39.1% | c) 60.9% | d) 65.2% | |

The average age of students at Tri-County Community College is normally distributed with a mean of 22.1 and a standard deviation of 2.3. What percent of students are older than 20. |
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a) 24.2% | b) 69.6% | c) 75.8% | d) 30.4% | |

The average age of students at Tri-County Community College is normally distributed with a mean of 22.1 and a standard deviation of 2.3. What percent of students are younger than 25.5? |
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a) 6.9% | b) 43.1% | c) 75.8% | d) 93.1% | |

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