Assignment: Chapter 4 Homework Video V (Exercise 4.02 (Algorithmic)) How many wa

Question

Assignment: Chapter 4 Homework Video V (Exercise 4.02 (Algorithmic)) How many ways can three items be selected from a group of nine items? 2. An experiment with three outcomes has been repeated 50 times, and it was learned that E1 occurred 10 times, E2 occurred 12 times, and E3 occurred 28 times. Assign probabilities to the following outcomes for E1, E2 and E3. Round your answer to two decimal places. PYEI) PYEz) What method did you use? 3. Simple random sampling uses a sample of size n from a population of size N to obtain data that can be used to make inferences about the characteristics of a population. Suppose that, from a population of 70 bank accounts, we want to take a random sample of five accounts in order to learn about the population. How many different random samples of five accounts are possible?

Explanation / Answer

1. Number of ways = 9C3 = 9!/(3! * 6!) = 84

2. P(E1) = 10/50 = 0.20

P(E2) = 12/50 = 0.24

P(E3) = 28.50 = 0.56

3. Number of samples possible = 70C5 = 12103014

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