Homework Assignment 2

Homework Assignment 2 - Homework Assignment #2A Due 9/18/08...

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Homework Assignment #2A Due 9/18/08 along with HW 2B 1. (Journal of Urology, Vol. 10, pp. 556-561) Certain kinds of tumors tend to recur. The following data represent the lengths of time, in months, for a tumor to recur after chemotherapy: 19 18 17 1 21 22 54 46 25 49 50 1 59 39 43 39 5 9 38 18 14 45 54 59 46 50 29 12 19 36 38 40 43 41 10 50 41 25 19 39 27 20 a. Create a histogram, Use 5 classes. Note: because the first class interval begins at 0, when you find the class boundaries, it will become -.5. This is awkward. To avoid having a negative for the the class boundary, you can shift the intervals to begin at 1. Instead of the first class interval being 0-11, and the next one being 12-23, make a shift. The first interval will now be 1-12, next one 13-24 etc. This way the boundaries will be .5-12.5, and 12.5 - 24.5 . ..... Granted 1 is not a multiple of 12. The rule stating that the lower class interval should be a multiple of the class width is a general guideline to make it easy to come up with the intervals. It is not
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This note was uploaded on 10/25/2008 for the course AMS 102 taught by Professor Adriennechu during the Spring '08 term at SUNY Stony Brook.

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Homework Assignment 2 - Homework Assignment #2A Due 9/18/08...

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