494 Answered Questions for the topic Finite Mathematics
Finite Mathematics
03/22/15
Gasoline mixture question
A service station has 65 octane and 78 octane gasoline. How many liters of each gasoline should be mixed to provide 13 liters of 75 octane gasoline for a chemistry experiment?
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Finite Mathematics
03/22/15
How would you simplify [(6t)^2]^6? in expoential notation
How would you simplify [(6t)^2]^6? in exponential notation
Finite Mathematics
03/18/15
Venn Diagram
500 freshman at USC are pursuing a business degree.
300 are enrolled in economics
225 in mathematics
140 in both courses
what is the probability a freshman selected will be enrolled...
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Finite Mathematics
03/18/15
without replacement
Three balls are selected at random WITHOUT replacement from an urn with 5 WHITE and 4 BLUE balls. Calculate the probability that:
a) two balls will be white and 1 ball will be blue
b) All...
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Finite Mathematics
03/18/15
Mutually exclusive events
Let A and be two mutually exclusive events. The P(A)= .37 and the P(B)= .24 Compute all of the following:
a) P(A intersection B)
b) P(Bc)
c) P(A U B)
d) P(Ac)
e) P(Ac intersection Bc)
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Finite Mathematics
03/16/15
Four balls are selected at random
Four balls are selected at random WITHOUT replacement from an urn with 3 WHITE and 5 BLUE balls. Calculate the probability that:
Two balls will be white and 2 balls will be blue
All four...
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Finite Mathematics
03/15/15
Mutually exclusive events
Let A and B be two mutually exclusive events. The P(A)=.4 and the P(B)=.2 Compute all of the following
a) P(A intersection B)
b) P(Ac)
c) P(A U B)
d) P(Bc)
e) P(Ac intersection Bc)
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03/12/15
Questions A and B
A) How many ways can we select a 3-person committee from a group of 8 people.B) How many ways can a President,a Vice President, and a Secretarybe chosen from a group of 8 people?
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03/12/15
How many people in the group, speak both French and German?
A group of 110 people touring Europe includes 51 people who speak French, 59 who speak German, and 22 who speak neither language. How many people in the group,speak both French and German?
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03/12/15
How many different license plates are possible if each contains 3 letters (out of alphabet’s 26 letters) followed by 3 digits (from 0 to 9)?
How many different license plates are possible if each contains 3 letters (out of alphabet’s 26 letters) followed by 3 digits (from 0 to 9)?
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03/12/15
How many different choices does the student have?
An online college offers 5 introductory courses in humanities, 3 introductory courses in in sciences, 4 introductory courses in mathematics, and 4 in English. Astudent has to select one course from...
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03/12/15
How many students ar e taking neither of these two courses, i.e. neither statistics nor economics?
A small college has 987 students. 54 are enrolled in statistics, 45 are enrolled in economics, and 15 are enrolled in both statistics and economics. How many students are taking neither of these...
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Finite Mathematics
03/12/15
an unfair coin with P(H)=.25 is flipped 100 times. A random variable X= number of heads that occur Find the expected value and standard deviation
please show as many steps as possible thank you
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Finite Mathematics
03/10/15
Finite Math
Suppose that a 4-digit pin number is to be formed with the digits in {0,1,2,3,4,5,6,7,8,9}. What is the probability that the pin number contains at least 3 odd digits?
Thanks for the help!
Finite Mathematics
03/10/15
Finite Math Help!
A pharmaceutical company has two drug trials coming up. For the first trial, they project a 60% success rate. For the second trial, however, they project a 45% success rate. Based on these...
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Finite Mathematics
03/10/15
Three fair six sided dice are rolled. What is the probability that the sum of the outcome is 6? *Round your answer to the third decimal place.
Finite Math.. If you could also explain how you got the answer that would be awesome!
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03/07/15
How many of these are less than 5000?
In this version, you are to form a 4-digit number from the digits 1, 2, 3, 4, 7, 8, and 9, using each at most once.
How many of these are less than 5000?
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03/07/15
What is the value of w2?
For this problem, assume that 2, 6, 5, and 4 are equally likely, a 1 is three times as likely as a 4, and a 3 is four times as likely as a 1. (1) What is the value of w2? (2) What is the value of...
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03/07/15
How many ways can you pick the cars so not all are the same size?
For this problem, assume that you are to pick 4 cars from the motor pool, which contains 7 subcompact cars, 6 compact cars, and 4 midsize cars. How many ways can you pick the cars so not all are...
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03/05/15
1) What is the value of w2? (2) What is the value of w1? (3) What is the value of w3?
For this problem, assume that 2, 6, 5, and 4 are equally likely, a 1 is three times as likely as a 4, and a 3 is four times as likely as a 1.(1) What is the value of w2? (2) What is the value of...
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03/05/15
What is the probability they sum to 9, 3, or 6?
involving the sum of two die rolls.(1) What is the probability they sum to 9, 3, or 6? (2) What is the probability they sum to at least 7?
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03/05/15
What is the probability that at least 2 of the dinners selected are pasta dinners?
Assume that there are 15 frozen dinners: 6 pasta, 5 chicken, and 4 seafood dinners. The student selects 5 of them.What is the probability that at least 2 of the dinners selected are pasta dinners?
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03/05/15
In how many ways can the assignments be made if John writes the introduction?
Assume that 12 students, including John, are working on the project report, which contains an introduction, 4 chapters, and a conclusion for a total of 6 sections.(1) In how many ways can the...
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03/04/15
Finite Homework, need help: permutations, combinations, probability.
1. For this problem, assume the cooler contains 32 cans, 22 of which are regular, and the rest of which are diet.
What is the probability of selecting 5 cans from the cooler so that at least 4 are...
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Finite Mathematics
03/04/15
How many subsets of S have at most 2 elements?
Assume that the set S has 11 elements.How many subsets of S have at most 2 elements?
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