P0008_Soln - 1 1- 0.05 ( ) 20- 1 = 0.3774 p X k = 2 ( ) =...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
P0008_Soln.doc p = 0.05 n = 20 “at least 3” implies we are interested in greater than or equal to 3 P k ³ 3 ( ) =1- P k < 3 ( ) so, k = 0,1, or 2 p X k ( ) = n k ae è ç ö ø ÷ p k 1- p ( ) n - k k = 0,1,K , n p X k = 0 ( ) = 20 0 ae è ç ö ø ÷ 0.05 0 1- 0.05 ( ) 20- 0 = 0.3585 p X k =1 ( ) = 20 1 ae è ç ö ø ÷ 0.05
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 1 1- 0.05 ( ) 20- 1 = 0.3774 p X k = 2 ( ) = 20 2 ae 0.05 2 1- 0.05 ( ) 20- 2 = 0.1887 P k &lt; 3 ( ) = 0.3585 + 0.3774 + 0.1887 = 0.9246 P k 3 ( ) =1-P k &lt; 3 ( ) = 0.0754 Answer: B...
View Full Document

This note was uploaded on 02/01/2011 for the course BME 335 taught by Professor Dunn during the Spring '10 term at University of Texas at Austin.

Ask a homework question - tutors are online