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Expert: Sherry Wallin - 8/18/2009


Question
If you were to randomly cut through a sphere, what would be the average diameter of the circle exposed?
I have a sample that contains multiple spheres.  I took a section of the sample, and measured the diameter of each circular profile of the spheres I could see.  I want to derive the average diameter of spheres from the average diameter of the circular profiles.

Answer
Matt~
    You have a sample that you want to estimate the population from. Your sample is the diameter of each circular profile of the spheres you see. Find the mean your sample and to find the average diameter of the circular profiles.

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Sherry Wallin

Expertise

I can answer most questions up through Calculus and some in Number Theory and Abstract Algebra.

Experience

I have had my Bachelor's Degree since 1987 and have been a teacher since 1988. I earned my Masters Degree in Mathematics May 2010. I have been teaching at the same community college since 2002.

Education/Credentials
I have taught 12 years at the community college level, medical college, and technical college as well as a high school instructor and alternative education instructor and charter school instructor.

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Master's GPA 3.56 Bachelor's GPA 3.34 Post grad work not degree related GPA 4.0

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