RE: Questions 1 and 8
CMSAF@gpmlife.com
Tue, 3 Nov 1998 11:59:47 -0600
On number 8, I answered C. I got this by using (3/4(E(X^2)) + 1/4(E(X^2)) -
{[(3/4(E(X)) + 1/4(E(X))]^2}. The answer was 232,500. If, instead, you did
3/4(Var(X) + 1/4(Var(X), you got 202,500, which is B. I think you were
supposed to apply the probabities to the expected value of X^2 and X and not
the Variance, though. I don't know about #1.
For #11, 12 and 13, do you agree with E, C, D.
-----Original Message-----
From: Michelle Isaacs [mailto:misaacs@trustmarkins.com]
Sent: Tuesday, November 03, 1998 11:46 AM
To: studygroup4b@lists.casact.org
Subject: Questions 1 and 8
Has there been any consensus on the answers to questions 1 or 8?