138sp10exam2

138sp10exam2 - Math 13800 Exam 2 Spring 2010 For#1-3 CIRCLE...

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Math 13800 Exam 2 Spring 2010 1 For #1-3, CIRCLE THE LETTER OF THE CORRECT ANSWER. (7 pts)1. Find a function rule for the number of toothpicks to make Shape n in the following pattern: Shape 1 Shape 2 Shape 3 .3 4 .4 4 .4 3 .3 3 . None of the above An Bn Cn Dn E + + + + (7 pts)2. On Elm Street, there are 27 houses of which 8 do not have a garage. Morgan lives on Elm Street. Determine the odds in favor of Morgan living in a house that has a garage. .8:19 .19:27 .8:27 .27:35 .19:8 A B C D E (7 pts)3. Of these three statements, which are referring to a population parameter? I. In Mr. Hobson’s fifth-grade class, cats are the favorite pet of 55% of the students. II. The newspaper surveyed voters in the city of Chicago and found that 48% are opposed to the school funding proposal. III. The average GPA of all current members of a certain sorority is 3.24. . II only . III only . I and II only . I and III only . II and III only A B C D E
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Math 13800 Exam 2 Spring 2010 2 (8 pts)4. In an arithmetic sequence, each entry after the first is obtained by adding a fixed number to the previous entry. Fill in the blanks for this arithmetic sequence: 2.4, 3.1, 3.8, 4.5, _____, _____, _____; the 20 th entry is: __________ Complete this sentence: In a geometric sequence, each entry after the first is obtained by _________________________________________________________________________
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138sp10exam2 - Math 13800 Exam 2 Spring 2010 For#1-3 CIRCLE...

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