# Discrete Probabilty Distribution

**Question description**

I need the following calculated and answered in an Excel Spreadsheet

1:

The director of admissions at Kinzua University in Nova Scotia estimated the distribution of student admissions for the fall semester on the basis of past experience.

Admissions | Probability |

1,010 | 0.6 |

1,380 | 0.3 |

1,600 | 0.1 |

1. | What is the expected number of admissions for the fall semester? |

Expected number of admissions |

2. | Compute the variance and the standard deviation of the number of admissions. |

2: It is reported that 22% of American households use a cell phone exclusively for their telephone service. In a sample of seventeen households, find the probability that:

a. | No household uses a cell phone as their exclusive telephone service. |

Probability |

b. | Exactly 10 households exclusively use a cell phone for telephone service. |

Probability |

c. | Find the mean number of households exclusively using cell phones. |

11

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