Homework 6 Solutions - Engineering Statistics | STAT 305, Assignments of Statics

Material Type: Assignment; Class: ENGINEERING STAT; Subject: STATISTICS; University: Iowa State University; Term: Spring 2009;

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Pre 2010

Uploaded on 09/02/2009

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Stat 305 (Ghosh): HW6 Solutions Pw 4. © 243. + 2 3 « e 3 3 ° o 4) =.984. (c) P(X <4)=1- P(X > 4) = 016. {d) BX =np=5.4. (e) VarX = np(1— p) = 54; std. dev. of X = V54=.735. Use the binomial distribution, equation (5-3), with n = 10 and p = .15. (a) P(X = 2) = .276. (b) P(X > 1)s1- P(X < 1)=1- P(X =0) = 1-197 = 803. (c) EX =np=1.5. (4) VarX = np(1 — p) = 1.275. (ce) V1-278 = 1.129. 2