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Set2_Spring2007

# Set2_Spring2007 - Homework Set#2 NAME_Rebecca Anderson...

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Unformatted text preview: Homework Set #2 NAME:______Rebecca Anderson___________ CM:______408_______ MA 223, Engineering Statistics Spring 2008; 15 points possible Due date: Tuesday , March 18 at the BEGINNING of class . You may work together on thinking through these problems, but what you turn in must be your own individual write up and work. Please show as much work as possible. When in doubt about what to include, include it! It’s much easier to give partial credit when the work is all available. • Please clearly label your graphs – including axes … • Please attach your Maple work at the end of the homework set . 1. [+3] Timmy Daydream has trouble paying attention in his statistics class. Let x denote the number of minutes that Timmy is able to focus on the material during any given 50 minute lecture. The value of x varies from lecture to lecture. The density function for the distribution of x is given by: =- .- - ≤ & ≤ fx ke 0 1x e x x 500 otherwise , where k is some constant. (a) Determine the value of the constant k such that f ( x ) is a valid density function. Express k correct to at least four decimal places....
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Set2_Spring2007 - Homework Set#2 NAME_Rebecca Anderson...

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