Discuss the advantages and disadvantages of odds.
What will be an ideal response?
Q. 2The test scores of 40 students are listed below. Find P85.
30 35 43 44 47 48 54 55 56 57
59 62 63 65 66 68 69 69 71 72
72 73 74 76 77 77 78 79 80 81
81 82 83 85 89 92 93 94 97 98
A) 87 B) 85 C) 89 D) 34
Q. 3To get the best deal on a microwave oven, Jeremy called six appliance stores and asked the cost of
a specific model. The prices he was quoted are listed below:
663 273 410 622 174 374
A) 36,838.2 dollars2 B) 36,838.3 dollars2
C) 30,698.6 dollars2 D) 1,207,582.7 dollars2
Q. 4A firm uses trend projection and seasonal factors to simulate sales for a given time period. It
assigns 0 if sales fall, 1 if sales are steady, 2 if sales rise moderately, and 3 if sales rise a lot.
The simulator generates the following output.
0 1 0 2 2 0 0 1 2 3 2 0 2 0 2 2 1 2 3 1 2 2 2 0 3 0 0 2 1 2 1
Estimate the probability that sales will rise at least moderately.
A) 0.613 B) 0.516 C) 0.512 D) 0.452
Q. 5A student earned grades of B, B, A, C, and D. Those courses had these corresponding numbers of
credit hours: 4, 5, 1, 5, 4. The grading system assigns quality points to letter grades as follows:
A = 4, B = 3, C = 2, D = 1, and F = 0.
Compute the grade point average (GPA) and round the result
to two decimal places.
A) 9.00 B) 3.46 C) 2.37 D) 1.37
Q. 6Construct a data set for which the range is misleading as a measure of variation. Explain
why the range is misleading and suggest an alternative measure of variation.
What will be an ideal response?
Q. 7Last year, nine employees of an electronics company retired. Their ages at retirement are listed
below.
51 61 62 57 50 67 68 58 53
A) 51 yr, 61 yr, 62 yr, 57 yr, 50 yr, 67 yr, 68 yr, 58 yr, 53 yr
B) 58 yr
C) 58.6 yr
D) no mode
Q. 8A student earned grades of 84, 78, 84, and 72 on her four regular tests. She earned a grade of 78 on
the final exam and 86 on her class projects. Her combined homework grade was 87.
The four
regular tests count for 40 of the final grade, the final exam counts for 30, the project counts for
10, and homework counts for 20. What is her weighted mean grade? Round to one decimal
place.
A) 81.3 B) 80.2 C) 81.2 D) 82.1
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