September 14, 2004

The Binomial Distribution

The probability of heads is p and the probability of tails is 1-p. We will toss 4 fair coints and try to think about tossing n fair coins.

P9140014a.jpg

We can find a general way to count the rearrangements of where the x heads occur. We agreed on the following results (lecture notation and textbook notation):

P9140016a.jpg

Fuzzy Fact:

P9140016b.jpg

They are equal!

Posted by bparke at 08:26 PM

Exam Dates

Midterm 1 October 7

Midterm 2 November 18

Posted by bparke at 12:29 PM

HW

Chapter 4

Due 9/16: #24,26,28,30,32,34,36.

Due 9/21: #38,40,42,44,46,48,50.

Due 9/23: #62,64,66,68,70,72,74,76,78.

Posted by bparke at 11:26 AM

Stata 1

Due: September 28, 2004

Let x = {1,2,3,4,5}, and let y=3x+7. Enter x with the data editor, and construct y using the generate command. Let z be your five lucky numbers. (If you do not have any lucky numbers, eat dinner at Charlie's. He will give you lucky numbers inside a fortune cookie.)

Calculate the sample means, variances, and standard deviations for x, y, and z using Stata. Print your results and turn them in.

Posted by bparke at 11:21 AM