Homework 1 - 550.430 Introduction to Statistics Spring 2012...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 550.430 Introduction to Statistics Spring 2012 Naiman Homework #1 Due Monday Feb 6th Note: Solutions to odd numbered exercises in the textbook appear in the back of the book. You should try to work out the problems to get the solutions, and use the answers to check your work and understanding. (1) A population consists of 3 households, labeled 1,2, and 3. The number of persons living in each household and their incomes are given in the following table: household number of inhabitants incomes 1 1 $80,000 2 2 $30,000, $70,000 3 3 $10,000, $40,000, $100,000 A household is selected at random with all households equally likely. Then a person is selected from the household with all people equally likely. Let X denote the number of the selected household, and let Y denote the income of the selected person. (i) Write down the probability mass function (frequency function) for X. This is the function p X defined by p X ( x ) = P [ X = x ] for each possible x....
View Full Document

Page1 / 2

Homework 1 - 550.430 Introduction to Statistics Spring 2012...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online