A store manager kept track of the number of newspapers sold each week over a seven-week
period. The results are shown below.
81 71 202 113 269 248 242
Find the median number of newspapers sold.
A) 202 newspapers B) 113 newspapers
C) 175 newspapers D) 242 newspapers
Q. 2Is it unusual to get 11 when a pair of dice is rolled?
A) Yes B) No
Q. 3Assume that a study of 500 randomly selected school bus routes showed that 482 arrived on time.
Is it unusual for a school bus to arrive late?
A) Yes B) No
Q. 4The customer service department of a phone company is experimenting with two different
systems. On Monday they try the first system which is based on an automated menu system.
On
Tuesday they try the second system in which each caller is immediately connected with a live
agent. A quality control manager selects a sample of seven calls each day. He records the time for
each customer to have his or her question answered. The times (in minutes) are listed below.
Automated Menu: 11.7 7.4 3.9 2.9 9.2 6.3 5.5
Live agent: 6.2 2.9 4.4 4.1 3.4 5.2 3.7
A) Automated Menu: 45.4
Live agent: 26.3
There is substantially more variation in the times for the automated menu system.
B) Automated Menu: 48.8
Live agent: 28.3
There is substantially more variation in the times for the automated menu system.
C) Automated Menu: 47.1
Live agent: 27.3
There is substantially more variation in the times for the automated menu system.
D) Automated Menu: 25.2
Live agent: 41.5
There is substantially more variation in the times for the live agent.
Q. 5In a certain class of students, there are 11 boys from Wilmette, 4 girls from Winnetka, 7 girls from
Wilmette, 4 boys from Glencoe, 5 boys from Winnetka and 4 girls from Glencoe.
If the teacher
calls upon a student to answer a question, what is the probability that the student will be a boy?
A) 0.71 B) 0.429 C) 0.571 D) 0.314
Q. 6The race speeds for the top eight cars in a 200-mile race are listed below.
181.0 180.6 189.2 182.2 175.6 180.0 177.9 181.8
A) 1.1 B) 6.8 C) 7.5 D) 3.4
Q. 7The prices (in dollars) of 12 electric smoothtop ranges are listed below.
865 1010 655 565 1465 1110
710 765 820 1310 555 1065
A) 900 B) 920 C) 930 D) 910
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