Ivo Dinov
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STAT 13 (1a, 1b, 1c)

Introduction to Statistical Methods for the Life and Health Science

Department of Statistics

Instructor: Ivo Dinov

Homework 1
Due Date: Monday, Oct. 06, 2008

Please, submit your homework right beofre lecture on the due date. See the HW submission rules. On the front page include the following header.

Number_of_Bristles 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46
Number_of_Flies 1 0 1 2 2 6 9 11 12 18 13 10 15 10 2 2 3 2
(a) Find the Median  number of bristles.
(b) Find Q1 and Q3.
(c) Make a boxplot of the data.
(d) The smaple mean is 38.45 and the sample SD is 3.20. What percentage of the observations fall within 1 SD of the mean?


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