day10 - Recall Continuous Random Variables A random...

Info icon This preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Recall : Continuous Random Variables : A random variable that may assume any numerical value in an interval or collection of intervals. Ex : Consider the experiment of construction a new library. Let the ran- dom variable x be the percentage of the project complete after 6 months. Continuous Probability Distributions We cannot use a table to represent the probability distribution for contin- uous random variables. Instead we use a smooth curve f ( x ) to describe the distribution graphically. f ( x ) must have the following properties: 1. f ( x ) 0 2. The total area under the curve is 1. The probability that the random variable is between two numbers a and b is the area under the curve between a and b . 1
Image of page 1

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

View Full Document Right Arrow Icon
The Normal Distribution The normal distribution is the most important probability distribution for continuous random variables. The normal distribution has a bell shape. We can describe the shape of the normal distribution: The central tendency: a mean of μ .
Image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern