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Home Q & A Board Science-Related Homework Help Mathematics Statistics and Probability
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From a group of six people, two individuals are to be selected at random. How many selections are ...
From a group of six people, two individuals are to be selected at random. How many selections are ...
From a group of six people, two individuals are to be selected at random. How many selections are possible?
 a. 12
  b. 36
  c. 15
  d. 8
Mserna19   50   1 Reply
6 years ago
Two events are mutually exclusive
Two events are mutually exclusive
Two events are mutually exclusive
 a. if their intersection is 1.
  b. if they have no sample points in common.
  c. if their intersection is 0.5.
  d. if most of their sample points are in common.
Haydena   42   1 Reply
6 years ago
Events that have no sample points in common are
Events that have no sample points in common are
Events that have no sample points in common are
 a. independent events.
  b. posterior events.
  c. mutually exclusive events.
  d. complements.
thisisstupidash   215   1 Reply
6 years ago
Initial estimates of the probabilities of events are known as
Initial estimates of the probabilities of events are known as
Initial estimates of the probabilities of events are known as
 a. subjective probabilities.
  b. posterior probabilities.
  c. conditional probabilities.
  d. prior probabilities.
alexisblack   81   1 Reply
6 years ago
The sum of the probabilities of two complementary events is
The sum of the probabilities of two complementary events is
The sum of the probabilities of two complementary events is
 a. 0.
  b. 0.5.
  c. 0.57.
  d. 1.0.
strobro   37   1 Reply
6 years ago
Assume your favorite soccer team has 2 games left to finish the season. The outcome of each game can ...
Assume your favorite soccer team has 2 games left to finish the season. The outcome of each game can ...
Assume your favorite soccer team has 2 games left to finish the season. The outcome of each game can be win, lose or tie. The number of possible outcomes is
 a. 2.
  b. 4.
  c. 6.
  d. 9.
arichman7730   59   1 Reply
6 years ago
An experiment consists of three steps. There are four possible results on the first step, three ...
An experiment consists of three steps. There are four possible results on the first step, three ...
An experiment consists of three steps. There are four possible results on the first step, three possible results on the second step, and two possible results on the third step. The total number of experimental outcomes is
 a. 9.
  b. 14.
kate lynn   31   1 Reply
6 years ago
If two events are independent, then
If two events are independent, then
If two events are independent, then
 a. they must be mutually exclusive.
  b. the sum of their probabilities must be equal to one.
  c. their intersection must be zero.
  d. the product of their probabilities gives their intersec
ANP2202   55   1 Reply
6 years ago
Bayes' theorem is used to compute
Bayes' theorem is used to compute
Bayes' theorem is used to compute
 a. the prior probabilities.
  b. the union of events.
  c. intersection of events.
  d. the posterior probabilities.
k123p   84   1 Reply
6 years ago
The multiplication law is potentially helpful when we are interested in computing the probability of ...
The multiplication law is potentially helpful when we are interested in computing the probability of ...
The multiplication law is potentially helpful when we are interested in computing the probability of
 a. mutually exclusive events.
  b. the intersection of two events.
  c. the union of two events.
  d. conditional events.
stroman54   52   1 Reply
6 years ago
If A and B are independent events with P(A) = 0.2 and P(B) = 0.6, then P(A B) =
If A and B are independent events with P(A) = 0.2 and P(B) = 0.6, then P(A B) =
If A and B are independent events with P(A) = 0.2 and P(B) = 0.6, then P(A  B) =
 a. 0.62.
  b. 0.12.
  c. 0.60.
  d. 0.68.
Mserna19   44   1 Reply
6 years ago
If A and B are mutually exclusive events with P(A) = 0.3 and P(B) = 0.5, then P(A B) =
If A and B are mutually exclusive events with P(A) = 0.3 and P(B) = 0.5, then P(A B) =
If A and B are mutually exclusive events with P(A) = 0.3 and P(B) = 0.5, then P(A  B) =
 a. 0.00.
  b. 0.15.
  c. 0.80.
  d. 0.20.
palacir999   46   1 Reply
6 years ago
Events A and B are mutually exclusive with P(C) = 0.3 and P(B) = 0.2 . Then, P(Bc) =
Events A and B are mutually exclusive with P(C) = 0.3 and P(B) = 0.2 . Then, P(Bc) =
Events A and B are mutually exclusive with P(C) = 0.3 and P(B) = 0.2 . Then, P(Bc) =
 a. 0.06.
  b. 0.50.
  c. 0.70.
  d. 0.80.
k123p   44   1 Reply
6 years ago
A six-sided die is tossed 3 times. The probability of observing three ones in a row is
A six-sided die is tossed 3 times. The probability of observing three ones in a row is
A six-sided die is tossed 3 times. The probability of observing three ones in a row is
 a. 1/6.
  b. 3/6.
  c. 1/27.
  d. 1/216.
lingo   24   2 Replies
6 years ago
The probability of the occurrence of event A in an experiment is 1/3 . If the experiment is ...
The probability of the occurrence of event A in an experiment is 1/3 . If the experiment is ...
The probability of the occurrence of event A in an experiment is 1/3 . If the experiment is performed 2 times and event A did not occur, then on the third trial event A
 a. must occur.
  b. may occur.
  c. could not occur.
  d. h
sdaggy1   19   1 Reply
6 years ago
A perfectly balanced coin is tossed 6 times, and tails appears on all six tosses. Then, on the ...
A perfectly balanced coin is tossed 6 times, and tails appears on all six tosses. Then, on the ...
A perfectly balanced coin is tossed 6 times, and tails appears on all six tosses. Then, on the seventh trial
 a. tail can not appear.
  b. head has a larger chance of appearing than tail.
  c. tail has a better chance of appearing tha
alexisblack   39   1 Reply
6 years ago
In an experiment, events A and B are mutually exclusive. If P(A) = 0.6, then the probability of B ...
In an experiment, events A and B are mutually exclusive. If P(A) = 0.6, then the probability of B ...
In an experiment, events A and B are mutually exclusive. If P(A) = 0.6, then the probability of B
 a. cannot be larger than 0.4.
  b. can be any value greater than 0.6.
  c. can be any value between 0 to 1.
  d. cannot be determi
browniels   45   1 Reply
6 years ago
A method of assigning probabilities based on historical data is called the
A method of assigning probabilities based on historical data is called the
A method of assigning probabilities based on historical data is called the
 a. classical method.
  b. subjective method.
  c. relative frequency method.
  d. historical method.
CTaustin   64   1 Reply
6 years ago
If P(A) = 0.62, P(B) = 0.47, and P(A B) = 0.88, then P(A B) =
If P(A) = 0.62, P(B) = 0.47, and P(A B) = 0.88, then P(A B) =
If P(A) = 0.62, P(B) = 0.47, and P(A  B) = 0.88, then P(A  B) =
 a. 0.2914.
  b. 1.9700.
  c. 0.6700.
  d. 0.2100.
browniels   25   1 Reply
6 years ago
If A and B are independent events with P(A) = 0.4 and P(B) = 0.25, then P(A B) =
If A and B are independent events with P(A) = 0.4 and P(B) = 0.25, then P(A B) =
If A and B are independent events with P(A) = 0.4 and P(B) = 0.25, then P(A  B) =
 a. 0.65.
  b. 0.55.
  c. 0.10.
  d. 0.75.
SnowQueen   35   2 Replies
6 years ago
If P(A) = 0.50, P(B) = 0.40 and P(A B) = 0.88, then P(B:
If P(A) = 0.50, P(B) = 0.40 and P(A B) = 0.88, then P(B:
If P(A) = 0.50, P(B) = 0.40 and P(A  B) = 0.88, then P(B A) =
 a. 0.02.
  b. 0.03.
  c. 0.04.
  d. 0.05.
escoba   19   1 Reply
6 years ago
If P(A) = 0.7, P(B) = 0.6, P(A ∩ B) = 0, then events A and B are
If P(A) = 0.7, P(B) = 0.6, P(A ∩ B) = 0, then events A and B are
If P(A) = 0.7, P(B) = 0.6, P(A ∩ B) = 0, then events A and B are
 a. non-mutually exclusive.
  b. mutually exclusive.
  c. independent events.
  d. complements of each other.
Nalu   55   1 Reply
6 years ago
If P(A) = 0.45, P(B) = 0.55, and P(A B) = 0.78, then P(A B) =
If P(A) = 0.45, P(B) = 0.55, and P(A B) = 0.78, then P(A B) =
If P(A) = 0.45, P(B) = 0.55, and P(A  B) = 0.78, then P(A  B) =
 a. 0.00
  b. 0.45
  c. 0.22
  d. 0.40
ejohnson3310   13   1 Reply
6 years ago
If P(A) = 0.48, P(A B) = 0.82, and P(B) = 0.54, then P(A B) =
If P(A) = 0.48, P(A B) = 0.82, and P(B) = 0.54, then P(A B) =
If P(A) = 0.48, P(A  B) = 0.82, and P(B) = 0.54, then P(A  B) =
 a. 0.3936.
  b. 0.3400.
  c. 0.2000.
  d. 1.0200.
love2211   39   1 Reply
6 years ago
Some of the CDs produced by a manufacturer are defective. From the production line, 5 CDs are ...
Some of the CDs produced by a manufacturer are defective. From the production line, 5 CDs are ...
Some of the CDs produced by a manufacturer are defective. From the production line, 5 CDs are selected and inspected. How many sample points exist in this experiment?
 a. 10
  b. 25
  c. 30
  d. 32
tmontes00   33   2 Replies
6 years ago
Six applications for admission to a local university are checked, and it is determined whether each ...
Six applications for admission to a local university are checked, and it is determined whether each ...
Six applications for admission to a local university are checked, and it is determined whether each applicant is male or female. How many sample points exist in the above experiment?
 a. 64
  b. 32
  c. 16
  d. 4
jldobro   41   1 Reply
6 years ago
Assume your favorite soccer team has 3 games left to finish the season. The outcome of each game can ...
Assume your favorite soccer team has 3 games left to finish the season. The outcome of each game can ...
Assume your favorite soccer team has 3 games left to finish the season. The outcome of each game can be win, lose, or tie. How many possible outcomes exist?
 a. 7
  b. 27
  c. 36
  d. 64
slapaburger   57   1 Reply
6 years ago
From nine cards numbered 1 through 9, two cards are drawn. Consider the selection and classification ...
From nine cards numbered 1 through 9, two cards are drawn. Consider the selection and classification ...
From nine cards numbered 1 through 9, two cards are drawn. Consider the selection and classification of the cards as odd or even as an experiment. How many sample points are there for this experiment?
 a. 2
  b. 3
  c. 4
  d. 9
sdaggy1   23   1 Reply
6 years ago
A student has to take 9 more courses before he can graduate. If none of the courses are prerequisite ...
A student has to take 9 more courses before he can graduate. If none of the courses are prerequisite ...
A student has to take 9 more courses before he can graduate. If none of the courses are prerequisite to others, how many groups of four courses can he select for the next semester?
SnowQueen   69   1 Reply
6 years ago
As a company manager for Claimstat Corporation there is a 0.40 probability that you will be promoted ...
As a company manager for Claimstat Corporation there is a 0.40 probability that you will be promoted ...
As a company manager for Claimstat Corporation there is a 0.40 probability that you will be promoted this year. There is a 0.72 probability that you will get a promotion, a raise, or both. The probability of getting a promotion and a raise is 0.25.
Mserna19   50   1 Reply
6 years ago
How many committees, consisting of 3 female and 5 male students, can be selected from a group of 5 ...
How many committees, consisting of 3 female and 5 male students, can be selected from a group of 5 ...
How many committees, consisting of 3 female and 5 male students, can be selected from a group of 5 female and 8 male students?
jprust87   39   1 Reply
6 years ago
An experiment consists of throwing two six-sided dice and observing the number of spots on the upper ...
An experiment consists of throwing two six-sided dice and observing the number of spots on the upper ...
An experiment consists of throwing two six-sided dice and observing the number of spots on the upper faces. Determine the probability that
 a. the sum of the spots is 3.
  b. each die shows four or more spots.
  c. the sum of the spot
nameless23   52   1 Reply
6 years ago
Forty percent of the students who enroll in a statistics course go to the statistics laboratory on a ...
Forty percent of the students who enroll in a statistics course go to the statistics laboratory on a ...
Forty percent of the students who enroll in a statistics course go to the statistics laboratory on a regular basis. Past data indicates that 65 of those students who use the lab on a regular basis make a grade of A in the course. On the other hand, o
Theleeman   61   1 Reply
6 years ago
A corporation has 15,000 employees. Sixty-two percent of the employees are male. Twenty-three ...
A corporation has 15,000 employees. Sixty-two percent of the employees are male. Twenty-three ...
A corporation has 15,000 employees. Sixty-two percent of the employees are male. Twenty-three percent of the employees earn more than 30,000 a year. Eighteen percent of the employees are male and earn more than 30,000 a year.
 a. If an employee
love2211   51   2 Replies
6 years ago
In the two upcoming basketball games, the probability that UTC will defeat Marshall is 0.63, and the ...
In the two upcoming basketball games, the probability that UTC will defeat Marshall is 0.63, and the ...
In the two upcoming basketball games, the probability that UTC will defeat Marshall is 0.63, and the probability that UTC will defeat Furman is 0.55 . The probability that UTC will defeat both opponents is 0.3465.
 a. What is the probability th
Mserna19   47   1 Reply
6 years ago
On a recent holiday evening, a sample of 500 drivers was stopped by the police. Three hundred were ...
On a recent holiday evening, a sample of 500 drivers was stopped by the police. Three hundred were ...
On a recent holiday evening, a sample of 500 drivers was stopped by the police. Three hundred were under 30 years of age. A total of 250 were under the influence of alcohol. Of the drivers under 30 years of age, 200 were under the influence of alcoho
cmsx27   48   1 Reply
6 years ago
Four workers at a fast food restaurant pack the take-out chicken dinners. John packs 45 of the ...
Four workers at a fast food restaurant pack the take-out chicken dinners. John packs 45 of the ...
Four workers at a fast food restaurant pack the take-out chicken dinners. John packs 45 of the dinners but fails to include a salt packet 4 of the time. Mary packs 25 of the dinners but omits the salt 2 of the time. Sue packs 30 of the dinners but fa
clcharleston   43   1 Reply
6 years ago
A survey of business students who had taken the Graduate Management Admission Test (GMAT) indicated ...
A survey of business students who had taken the Graduate Management Admission Test (GMAT) indicated ...
A survey of business students who had taken the Graduate Management Admission Test (GMAT) indicated that students who have spent at least five hours studying GMAT review guides have a probability of 0.85 of scoring above 400 . Students who do not rev
Mserna19   99   1 Reply
6 years ago
A machine is used in a production process. From past data, it is known that 97 of the time the ...
A machine is used in a production process. From past data, it is known that 97 of the time the ...
A machine is used in a production process. From past data, it is known that 97 of the time the machine is set up correctly. Furthermore, it is known that if the machine is set up correctly, it produces 95 acceptable (non-defective) items. However, wh
jprust87   38   1 Reply
6 years ago
A committee of 4 is to be selected from a group of 12 people. How many possible committees can be selected?
A committee of 4 is to be selected from a group of 12 people. How many possible committees can be selected?
A committee of 4 is to be selected from a group of 12 people. How many possible committees can be selected?
sdaggy1   70   1 Reply
6 years ago
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