Math 403 Practice Exam 2
1. A bag contains five blue balls and three red balls. A boy draws a ball, and then draws another ball, without putting back the first. What is the probability that he draws 2 red balls?
2. Suppose 2 of the next 12 persons
Practice Exam 1 Covering Chapters 1, 2 and 3 of Navidi Reminder: This does not cover all possible problems, it is just examples of types of problems that could be on the test. 1. How many different 7 digit phone numbers can be formed if the first dig
Math 403 Practice Exam 3
Covering chapters 5 and 6.1-6.4
1. To determine their length, 10 western rattlesnakes are selected. Their lengths in inches are: 40.2 43.1 45.5 44.5 39.5 40.2 41.0 41.6 43.1 44.9
a. Is it likely that the true average length
Math 403 Exam 4
1. The following table shows the preferences for two brands of chocolate cookie in a recently conducted taste-test involving 245 college students. Is the proportion of female students who prefer cookie A significantly greater than the