# Finite math (30 question) | Mathematics homework help

QUESTION 1
The following table gives the number of people killed in rollover crashes in various types of vehicles in 2002:
Types of VehiclesCarsPickupsSUVsVansDeaths472026602195684
If a fatality due to a rollover crash in 2002 is picked at random, what is the probability that the victim was in a pickup or an SUV?

a.0.52
b.0.37
c.0.47
d.0.40
e.0.55
1 points
QUESTION 2
The sample space associated with an experiment is given by S = { a, b, c}, where P( a) = . , P(b) = ., P(c) = ..
a.The statement is correct
b.The statement is incorrect
1 points
QUESTION 3
A time study was conducted by the production manager of Universal Instruments to determine how much time it took an assembly worker to complete a certain task during the assembly of its Galaxy home computers. Results of the study indicated that 25% of the workers were able to complete the task in less than 3 minutes, 55% of the workers were able to complete the task in 4 minutes or less, and 15% of the workers required more than 5 minutes to complete the task.
If an assembly-line worker is selected at random from this group, what is the probability that the time taken for the worker to complete the task will be between 3 and 4 min (inclusive)?

a.
b.
c.
d.
1 points
QUESTION 4
Let E and F be two events that are mutually exclusive and suppose P( E) = .4 and P( F) = .2. Compute P( E ∩ F).
a.0.4
b.0.5
c.0.9
d.0
1 points
QUESTION 5
Joanne, a high school senior, has applied for admission to four colleges, A, B, C, and D. She has estimated that the probability that she will be accepted for admission by A, B, C, and D is 0.45, 0.27, 0.11, and 0.09, respectively. Thus, the probability that she will be accepted for admission by at least one college is .

a.The statement is incorrect
b.The statement is correct
1 points
QUESTION 6
The following table gives the number of people killed in rollover crashes in various types of vehicles in 2002:
Types of VehiclesCarsPickupsSUVsVansDeaths438126622445684
If a fatality due to a rollover crash in 2002 is picked at random, what is the probability that the victim was in a car?
a.0.33
b.0.51
c.0.43
d.0.48
e.0.36
1 points
QUESTION 7
Mark Owens, an optician, estimates that the probability that a customer coming into his store will purchase one or more pairs of glasses but not contact lenses is .25, and the probability that he will purchase one or more pairs of contact lenses but not glasses is .40. Hence, Owens concludes that the probability that a customer coming into his store will purchase neither a pair of glasses nor a pair of contact lenses is .20.

a.The statement is correct
b.The statement is incorrect
1 points
QUESTION 8
The sample space associated with an experiment is given by . The events and are mutually exclusive. Hence, the events Ec and F c are mutually exclusive.

a.The statement is incorrect
b.The statement is correct
1 points
QUESTION 9
In a poll conducted among likely voters by Zogby International, voters were asked their opinion on the best alternative to oil and coal. The results are as follows:
SourceNuclearWindFuel
cellsBiofuelsSolarother/
What is the probability that a randomly selected participant in the poll mentioned wind or solar energy sources as the best alternative to oil and coal? Round answer to two decimal places.

a.0.39
b.0.44
c.0.49
d.0.15
e.0.29
1 points
QUESTION 10
In a survey conducted to see how long Americans keep their cars, 2,000 automobile owners were asked how long they plan to keep their present cars. The results of the survey follow:

Finite math (30 question) | Mathematics homework help

QUESTION 1
The following table gives the number of people killed in rollover crashes in various types of vehicles in 2002:
Types of VehiclesCarsPickupsSUVsVansDeaths472026602195684
If a fatality due to a rollover crash in 2002 is picked at random, what is the probability that the victim was in a pickup or an SUV?

a.0.52
b.0.37
c.0.47
d.0.40
e.0.55
1 points
QUESTION 2
The sample space associated with an experiment is given by S = { a, b, c}, where P( a) = . , P(b) = ., P(c) = ..
a.The statement is correct
b.The statement is incorrect
1 points
QUESTION 3
A time study was conducted by the production manager of Universal Instruments to determine how much time it took an assembly worker to complete a certain task during the assembly of its Galaxy home computers. Results of the study indicated that 25% of the workers were able to complete the task in less than 3 minutes, 55% of the workers were able to complete the task in 4 minutes or less, and 15% of the workers required more than 5 minutes to complete the task.
If an assembly-line worker is selected at random from this group, what is the probability that the time taken for the worker to complete the task will be between 3 and 4 min (inclusive)?

a.
b.
c.
d.
1 points
QUESTION 4
Let E and F be two events that are mutually exclusive and suppose P( E) = .4 and P( F) = .2. Compute P( E ∩ F).
a.0.4
b.0.5
c.0.9
d.0
1 points
QUESTION 5
Joanne, a high school senior, has applied for admission to four colleges, A, B, C, and D. She has estimated that the probability that she will be accepted for admission by A, B, C, and D is 0.45, 0.27, 0.11, and 0.09, respectively. Thus, the probability that she will be accepted for admission by at least one college is .

a.The statement is incorrect
b.The statement is correct
1 points
QUESTION 6
The following table gives the number of people killed in rollover crashes in various types of vehicles in 2002:
Types of VehiclesCarsPickupsSUVsVansDeaths438126622445684
If a fatality due to a rollover crash in 2002 is picked at random, what is the probability that the victim was in a car?
a.0.33
b.0.51
c.0.43
d.0.48
e.0.36
1 points
QUESTION 7
Mark Owens, an optician, estimates that the probability that a customer coming into his store will purchase one or more pairs of glasses but not contact lenses is .25, and the probability that he will purchase one or more pairs of contact lenses but not glasses is .40. Hence, Owens concludes that the probability that a customer coming into his store will purchase neither a pair of glasses nor a pair of contact lenses is .20.

a.The statement is correct
b.The statement is incorrect
1 points
QUESTION 8
The sample space associated with an experiment is given by . The events and are mutually exclusive. Hence, the events Ec and F c are mutually exclusive.

a.The statement is incorrect
b.The statement is correct
1 points
QUESTION 9
In a poll conducted among likely voters by Zogby International, voters were asked their opinion on the best alternative to oil and coal. The results are as follows:
SourceNuclearWindFuel
cellsBiofuelsSolarother/
What is the probability that a randomly selected participant in the poll mentioned wind or solar energy sources as the best alternative to oil and coal? Round answer to two decimal places.

a.0.39
b.0.44
c.0.49
d.0.15
e.0.29
1 points
QUESTION 10
In a survey conducted to see how long Americans keep their cars, 2,000 automobile owners were asked how long they plan to keep their present cars. The results of the survey follow: