# Mat201-Mod1-Case Assign1

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 $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 3. In a certain class of students, there are 13 boys from Wilmette, 3 girls from Kenilworth, 11 girls from Wilmette, 6 boys from Glencoe, 5 boys from Kenilworth and 6 girls from Glencoe. If the teacher calls upon a student to answer a question, what is the probability that the student will be from Kenilworth? 4. Find the probability of correctly answering the first 2 questions on a multiple choice test if random guesses are made and each question has 4 possible answers. 5. Of 1906 people who came into a blood bank to give blood, 300 people had high blood pressure. Estimate the probability that the next person who comes in to give blood will have high blood pressure. Submit your work to CourseNet by the module due date, if you are having difficulty please contact your professor. Case assignment expectations:

Use information from the modular background readings as well as any good quality resource you can find. Please cite all sources and provide a reference list at the end of your paper. The following items will be assessed in...

References: Interactive Tutorial on Probability, Retrieved Feb 20th, 2013,

at: http://www.cimt.plymouth.ac.uk/projects/mepres/book7/bk7i21/bk7_21i1.htm

Introduction to Probability, Retrieved Feb 20th, 2013, at: http://davidmlane.com/hyperstat/probability.html

Page on Simple, Conditional & Joint Probability, Retrieved Feb 20th, 2013,

at: http://sci.tamucc.edu/~eyoung/1351/simple_cond_joint.html

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