EX2A3700.F98

# EX2A3700.F98 - MSCI 3700 EXAM 2-A Fall, 1998 Name _...

This preview shows pages 1–3. Sign up to view the full content.

MSCI 3700 EXAM 2-A Name _______________________ Fall, 1998 Problems 1 - 5 use the following information. A mail-order firm keeps track of the orders it receives from three geographical regions, East, West, and North. For each region, the number of customers ordering size small, size medium, and size large was observed. The data are shown below. SIZE REGION Small (S) Medium (M) Large (L) TOTAL East (E) 100 160 140 400 West (W) 60 140 150 350 North (N) 90 100 60 250 TOTAL 250 400 350 1000 One of the orders is selected at random. 1. What is the probability that the order is from the West region? This is P(W). a. .06 b. .25 c. .35 d. .45 e. .30 2. What is P(W or S)? This represents the chances that the selected order is from the West region or is for the small size. a. .06 b. .45 c. .54 d. .60 e. .72 3. What is P(E│S)? a. .10 b. .40 c. .35 d. .25 e. .20 4. Are events M and E independent? a. Yes, since P(M and E) is zero. b. Yes, since P(M│E) is the same as P(M). c. Yes, since P(M│E) is the same as P(E). d. No, since P(M│E) is not the same as P(M). e. No, since P(M and E) is not zero.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
5. Are events M and E mutually exclusive? a. Yes, since P(M and E) is zero. b. Yes, since P(M│E) is the same as P(M). c. Yes, since P(M│E) is the same as P(E). d. No, since P(M│E) is not the same as P(M). e. No, since P(M and E) is not
This is the end of the preview. Sign up to access the rest of the document.

## EX2A3700.F98 - MSCI 3700 EXAM 2-A Fall, 1998 Name _...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online