The temperature fluctuated between a low of 73F and a high of 89F. Which of the following
could be calculated using just this information?
A) median B) range
C) variance D) standard deviation
Q. 2The range of scores on a statistics test was 42. The lowest score was 57. What was the highest
score?
A) cannot be determined B) 78
C) 99 D) 70.5
Q. 3The amount spent on textbooks for the fall term was recorded for a sample of five university
students - 400, 350, 600, 525, and 450. Calculate the value of the sample standard deviation
for the data.
A) 450 B) 98.75 C) 250 D) 99.37
Q. 4A basketball player has an 80 chance of making the first free -throw he shoots. If he makes the
first free -throw shot, then he has a 90 chance of making the second free-throw he shoots.
If he
misses the first free-throw shot, then he only has a 70 chance of making the second free -throw
he shoots. Suppose this player has been awarded two free -throw shots. Find the probability that
he makes at least one of the two shots.
A) 0.80 B) 0.72 C) 0.94 D) 0.86
Q. 5Unsecured creditors may repossess the debtor's property if the debtor is in default on a loan.
Indicate whether the statement is true or false
Q. 6The amount spent on textbooks for the fall term was recorded for a sample of five university
students - 400, 350, 600, 525, and 450. Calculate the value of the sample range for the data.
A) 250 B) 99.37 C) 450 D) 98.75
Q. 7In a particular town, 20 of the homes have monitored security systems. If an alarm is triggered,
the security system company will contact the local police to alert them of the alarm.
Of all the
alarm calls that the local police receive, they only have the manpower to answer 30 of the calls.
Suppose we randomly sample one home that was broken into over the last month from this
town. What is the probability that this home has a monitored security system and that the police
answered the alarm call?
A) 0.2000 B) 0.9400 C) 0.0600 D) 0.3000
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