Question

1. Solve the problem. Round your answer to 2 decimal places when necessary. In a recent year, there were 62 accidents in commercial aviation among major airlines over 15.5 million flight hours. Find the accident rate in units of accidents per 100,000 flight hours. A. 0.62 accidents per 100,000 flight hours B. 6.2 accidents per 100,000 flight hours C. 4 accidents per 100,000 flight hours D. 0.40 accidents per 100,000 flight hours 2. Solve the problem. Round your answer to 2 decimal places when necessary. At an intersection in Normal, Illinois, there were 156 vehicle accidents with 255,083 vehicles passing through the intersection. Determine the accident rate per 10,000 vehicles. A. 6.12 accidents per 10,000 vehicles B. 255.08 accidents per 10,000 vehicles C. 0 accidents per 10,000 vehicles D. 1,635,147.44 accidents per 10,000 vehicles 3. Provide an appropriate response. Sean flipped a coin 100 times and got heads 42 times. He concludes that the probability of getting heads on a flip of his coin is 0.42. Which method did Sean use? A. Theoretical method B. Empirical method C. Subjective method D. Multiplication method 4. Decide whether events A and B are overlapping or non-overlapping. You roll a red die and a blue die. Event A is that you get a sum of 9. Event B is that you get a sum of 3. A. Non-overlapping B. Overlapping 5. Find the indicated probability. Round your answer to 6 decimal places when necessary. If three fair coins are tossed, what is the probability of not tossing three heads? A. 1/8 b. 7/8 c. 1/3 s. 2/3 6. Solve the problem. Suppose a charitable organization decides to raise money by raffling a trip worth $500. If 3,000 tickets are sold at $1.00 each, find the expected net winnings for a person who buys 1 ticket. A. -$1.00 B. -$0.85 C. -$0.83 D. -$0.81 7. Determine whether the events A and B are independent. Eight friends are drawing straws. The one who picks the short straw must cook dinner for the others. Event A: The first person does not pick the short straw Event B: The second person picks the short straw A. No B. Yes 8. Solve the problem. If it has been determined that the probability of an earthquake occurring on a certain day in a certain area is 0.05, what are the odds against an earthquake? A. 18 to 1 B. 20 to 1 C. 19 to 1 D. 1 to 20

          1. Solve the problem. Round your answer to 2 decimal places when
necessary.
In a recent year, there were 62 accidents in commercial aviation
among major airlines over 15.5 million flight hours. Find the
accident rate in units of accidents per 100,000 flight hours.
A. 0.62 accidents per 100,000 flight hours
B. 6.2 accidents per 100,000 flight hours
C. 4 accidents per 100,000 flight hours
D. 0.40 accidents per 100,000 flight hours
2. Solve the problem. Round your answer to 2 decimal places when
necessary.
At an intersection in Normal, Illinois, there were 156 vehicle
accidents with 255,083 vehicles passing through the intersection.
Determine the accident rate per 10,000 vehicles.
A. 6.12 accidents per 10,000 vehicles
B. 255.08 accidents per 10,000 vehicles
C. 0 accidents per 10,000 vehicles
D. 1,635,147.44 accidents per 10,000 vehicles
3. 
Provide an appropriate response.
Sean flipped a coin 100 times and got heads 42 times. He concludes
that the probability of getting heads on a flip of his coin is
0.42. Which method did Sean use?
A. Theoretical method
B. Empirical method
C. Subjective method
D. Multiplication method
4. 
Decide whether events A and B are overlapping or
non-overlapping.
You roll a red die and a blue die.
Event A is that you get a sum of 9.
Event B is that you get a sum of 3.
A. Non-overlapping
B. Overlapping
5. 
Find the indicated probability. Round your answer to 6 decimal
places when necessary.
If three fair coins are tossed, what is the probability of not
tossing three heads?
A. 1/8
b. 7/8
c. 1/3 
s. 2/3 
6. 
Solve the problem.
Suppose a charitable organization decides to raise money by
raffling a trip worth $500. If 3,000 tickets are sold at $1.00
each, find the expected net winnings for a person who buys 1
ticket.
A. -$1.00
B. -$0.85
C. -$0.83
D. -$0.81
7. 
Determine whether the events A and B are independent.
Eight friends are drawing straws. The one who picks the short straw
must cook dinner for the others.
Event A: The first person does not pick the short straw
Event B: The second person picks the short straw
A. No
B. Yes
8. 
Solve the problem.
If it has been determined that the probability of an earthquake
occurring on a certain day in a certain area is 0.05, what are the
odds against an earthquake?
A. 18 to 1
B. 20 to 1
C. 19 to 1
D. 1 to 20

Added by Erin A.

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