Chapter 3.5, Problem 1LC

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8th Edition

Frederick J Gravetter + 1 other

ISBN: 9781133956570

Textbook Problem

During the month of October, an instructor recorded the number of absences for each student in a class of *n* = 20 and obtained the following distribution.

Number of Absences |
f |

5 | 1 |

4 | 2 |

3 | 7 |

2 | 5 |

1 | 3 |

0 | 2 |

**a.**Using the mean, what is the average number of absences for the class?**b.**Using the median, what is the average number of absences tor the class?**c.**Using the mode, what is the average number of absences for the class?

**a.**

To determine

**To Find:** The average number of absence for the class, using the mean.

Explanation

**Given info:**

The frequency distribution table is provided in the question.

X |
f |

5 | 1 |

4 | 2 |

3 | 7 |

2 | 5 |

1 | 3 |

0 | 2 |

Total=20 |

**Calculation:**

**Software procedure:**

Step-by-step procedure to obtain the

- Go to
**Variable View>**Enter the name of the variable as**X**, second variable as**f**and third variable as**fX.** - Go to
**Data View**>Enter the values of**X**and**f.** - Go to
**Transform**>Choose**Compute variable**>Enter**fX**in Target Variable - Write
**X*f**in**Numeric expression**

**b.**

To determine

**To Find:** The average number of absence in the class, using the median.

**c.**

To determine

**To Find:** The mode of the data provided

Sect-3.2 P-1LCSect-3.2 P-2LCSect-3.2 P-3LCSect-3.2 P-4LCSect-3.2 P-5LCSect-3.2 P-1LCASect-3.2 P-2LCASect-3.2 P-3LCASect-3.2 P-4LCASect-3.3 P-1LC

Sect-3.3 P-2LCSect-3.3 P-3LCSect-3.5 P-1LCSect-3.6 P-1LCSect-3.6 P-2LCSect-3.6 P-3LCSect-3.6 P-4LCCh-3 P-1PCh-3 P-2PCh-3 P-3PCh-3 P-4PCh-3 P-5PCh-3 P-6PCh-3 P-7PCh-3 P-8PCh-3 P-9PCh-3 P-10PCh-3 P-11PCh-3 P-12PCh-3 P-13PCh-3 P-14PCh-3 P-15PCh-3 P-16PCh-3 P-17PCh-3 P-18PCh-3 P-19PCh-3 P-20PCh-3 P-21PCh-3 P-22PCh-3 P-23PCh-3 P-24PCh-3 P-25PCh-3 P-26PCh-3 P-27P

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