# Essay on Mat201-Mod1-Case Assign1

948 WordsJun 27, 20134 Pages
TRIDENT UNIVERSITY CHARISSA S. WILLIAMS MODULE 1/CASE ASSIGNMENT 1 MAT201 BASIC STATISTICS/CASE 1 DR. WALTER MAKOVOS FEB 20, 2013 Module 1 - Case Introduction to Probability Solve the following problems showing your work: 1. In a poll, respondents were asked whether they had ever been in a car accident. 177 respondents indicated that they had been in a car accident and 107 respondents said that they had not been in a car accident. If one of these respondents is randomly selected, what is the probability of getting someone who has been in a car accident? 2. The data set represents the income levels of the members of a country club. Find the probability that a randomly selected member earns at least…show more content…
3. Explain the basic logic of probability theory Probability can be a complex field of mathematics, but in its simplest definition it is the likelhood of an event being true divided by the total number of possibilities. For example, flipping a coin has two possibilities: heads or tails. There is only one way for a coin to land on heads, so the answer to this probability question is 1:2. 1. In a poll, respondents were asked whether they had ever been in a car accident. 177 respondents indicated that they had been in a car accident and 107 respondents said that they had not been in a car accident. If one of these respondents is randomly selected, what is the probability of getting someone who has been in a car accident? - 177 = Probability of choosing someone who was in a car accident because fraction cannot be reduced any more 107 than it is. So the odds are 177 out of 284 total choices. 2. The data set represents the income levels of the members of a country club. Find the probability that randomly selected member earns at least \$102,000 INCOME (Thousands of dollars) 108 128 82 138 85 108 88 76 158 208 79 98 148 85 128 118 88 168 73 118 - There are 20 total members, 11 members with income &gt; or = to 102, 000. The probability is 9 chance that a person will chosen that has a total income of \$102,000 or