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
Math 153 Quiz 3 February 21, 2008
Name: SOLUTIONS Show your work for full credit.
1. Find the slope-intercept form of the equation of the line parallel to the line 3x + 5y = 7 and having x-intercept (-4, 0). 3x + 5y = 7 5y = -3x + 7 3 7 y = - x+ 5
Math 153 Quiz 2 February 5, 2008
Name: SOLUTIONS Show your work for full credit.
1. Solve the equation S = C + RC for C. C + RC = S C (1 + R) = S C = S 1+R
2. Solve the quadratic equation x2 - 2x - 3 = 0 by completing the square. Simplify your ans
Math 153 Exam 1 February 12, 2008
Name: SOLUTIONS Show your work for full credit.
1. The endpoints of a diameter of a circle are (-4, -1) and (4, 1). Write the equation of this circle in standard form. -4 + 4 -1 + 1 , = (0, 0) Center of circle : 2