Suppose the variable x represents students and y represents courses and: F(x): x is a freshman...
Suppose the variable x represents students and y represents courses and: F(x): x is a freshman A(x): x is a part-time student T(x,y): x is taking y Write the statement in good English without using variables in your answers
. a. F(Mikko)
b. ¬ ∃ y T (Joe, y )
c. ∃ x (A(x) /\ ¬ F(x)
Homework Answers
a. Mikko is a freshman.
b. There does not exist any y such that Joe is taking y.
or
For all y, Joe is not taking y.
c. There exists at least one x such that x is a part student and x is not a freshman.
Add Answer to:
Suppose the variable x represents students and y represents
courses and: F(x): x is a freshman...
question 13 please Microsoft Word Fall 2019 Home X + Hamnok Fall 2019TU Disc X Microsoft...
question 13 please
Microsoft Word Fall 2019 Home X + Hamnok Fall 2019TU Disc X Microsoft Word Fall 2019 Ham: x C Gat Hamework Help With Chege x → C o O File c/Users/mduro/Downloads/Fall%202019%20Homework 2011.pclf + 11. Suppose the variable x represents students and y represents courses and: F(x): x is o freshmon [x]: x is a part-time student Tix.y]: x is taking y Write the statement in good English without using variables in your answers a. FiMikko) b. 3...
Suppose the variable x represents children and the variable y represents treats, and: S(y): y is...
Suppose the variable x represents children and the variable y represents treats, and: S(y): y is a sweet treat R(y): yis a salty treat, K(x):x is a child who is 10 or younger, T(x):x is a teenager and P(x,y):x likes y Translate into words: a) Vy(S(y)). b) 3xVy((K(x) A P(x, y)) c) 3y -(S(y) v R(y)) d) Express using quantifiers: Some children don't like salty treats. e) Express using quantifiers: All treats are either sweet or salty.
Suppose the random variable X represents the time to failure (in thousands of miles driven) of th...
Suppose the random variable X represents the time to failure
(in thousands of miles driven) of the signal lights on an
automobile, and that X has a Weibull distribution with alpha =
.0125 and Beta = 2/3.
A) What is the probability that the signal lights function for
at least 20,000 miles?
B) For how many miles can the signal lights be expected to
last?
s. Suppose the random variable represents the time to failure (in thousands of miles driven)...
QUESTION 4 Suppose Xis a random variable with probability density function f(x) and Y is a...
QUESTION 4 Suppose Xis a random variable with probability density function f(x) and Y is a random variable with density function f,(x). Then X and Y are called independent random variables if their joint density function is the product of their individual density functions: x, y We modelled waiting times by using exponential density functions if t <0 where μ is the average waiting time. In the next example we consider a situation with two independent waiting times. The joint...
Suppose X,Y are continuous random variables, with cumulative distribution functions (cdfs) F X and F Y...
Suppose X,Y are continuous random variables, with cumulative distribution functions (cdfs) F X and F Y , respectively. For each of the following, determine whether the function F is necessarily the cdf of some random variable Z ? In case the function is a cdf, find the density f Z in terms of F X , f X , F Y and f Y . If the function is not necessarily a cdf, give an example of random variables X,Y...
QUESTION 19 A random variable x equals the number of courses for which a typical student...
QUESTION 19 A random variable x equals the number of courses for which a typical student is registered at a very large university comprised of tens of thousands of students. The probability distribution of x appears below X po 1 0.02 2 0.03 3 0.09 4 0.25 5 0.40 6 0.16 0.05 Problem 5b If 5 students were selected at random compute the probability that exactly 2 of them are taking only one courte Do not round your answer
Suppose the random variable XeN(45.7,3.1) represents the number of students in the Class who attend class...
Suppose the random variable XeN(45.7,3.1) represents the number of students in the Class who attend class at the beginneing of a lecture while random variable YeN(39.8,2.9) represents the number of students who return to lecture after the 10 min break (assume x and y are independent). Determine the probablilty that after the break there will be at least 6 fewer students in the lecture than there were before the break.
(6) Suppose that X is an absolutely continuous random variable with density 1<I<2 f(3) = lo,...
(6) Suppose that X is an absolutely continuous random variable with density 1<I<2 f(3) = lo, otherwise. Find (a) the moment generating function MX(t). (b) the skewness of X (c) the kurtosis of X (7) Suppose that X, Y and Z are random variables such that p(X,Y) = 1 and p(Y,Z) = -1. What is p(X, Z)? Explain your answer. (8) Suppose that X, Y and Z are random variables such that p(X,Y) = -1 and p(Y,Z) = 0. What...
Suppose that the random variable X represents the length of a punched part in meters. Let...
Suppose that the random variable X represents the length of a punched part in meters. Let Y be the length of the part in inches. Please report your answer in 1 decimal place. If V(X) = 0.29, what is the variance of Y? 1 m = 39.37 inches
let x be a random variable that represents the length of time it takes a student...
let x be a random variable that represents the length of time it takes a student to complete a MTH 23 exam.It was found that x has an approximately normal distribution with mean =1.5 hours and standard deviation =.25 hours. (a) What is the probability that it takes at least 1.4 hours for a randomly selected student to complete the exam? (b) Suppose 25 student are selected at random. What is the probability that the means time of completing the...
question 13 please
Microsoft Word Fall 2019 Home X + Hamnok Fall 2019TU Disc X Microsoft Word Fall 2019 Ham: x C Gat Hamework Help With Chege x → C o O File c/Users/mduro/Downloads/Fall%202019%20Homework 2011.pclf + 11. Suppose the variable x represents students and y represents courses and: F(x): x is o freshmon [x]: x is a part-time student Tix.y]: x is taking y Write the statement in good English without using variables in your answers a. FiMikko) b. 3...
Suppose the variable x represents children and the variable y represents treats, and: S(y): y is a sweet treat R(y): yis a salty treat, K(x):x is a child who is 10 or younger, T(x):x is a teenager and P(x,y):x likes y Translate into words: a) Vy(S(y)). b) 3xVy((K(x) A P(x, y)) c) 3y -(S(y) v R(y)) d) Express using quantifiers: Some children don't like salty treats. e) Express using quantifiers: All treats are either sweet or salty.
Suppose the random variable X represents the time to failure
(in thousands of miles driven) of the signal lights on an
automobile, and that X has a Weibull distribution with alpha =
.0125 and Beta = 2/3.
A) What is the probability that the signal lights function for
at least 20,000 miles?
B) For how many miles can the signal lights be expected to
last?
s. Suppose the random variable represents the time to failure (in thousands of miles driven)...
QUESTION 4 Suppose Xis a random variable with probability density function f(x) and Y is a random variable with density function f,(x). Then X and Y are called independent random variables if their joint density function is the product of their individual density functions: x, y We modelled waiting times by using exponential density functions if t <0 where μ is the average waiting time. In the next example we consider a situation with two independent waiting times. The joint...
QUESTION 19 A random variable x equals the number of courses for which a typical student is registered at a very large university comprised of tens of thousands of students. The probability distribution of x appears below X po 1 0.02 2 0.03 3 0.09 4 0.25 5 0.40 6 0.16 0.05 Problem 5b If 5 students were selected at random compute the probability that exactly 2 of them are taking only one courte Do not round your answer
(6) Suppose that X is an absolutely continuous random variable with density 1<I<2 f(3) = lo, otherwise. Find (a) the moment generating function MX(t). (b) the skewness of X (c) the kurtosis of X (7) Suppose that X, Y and Z are random variables such that p(X,Y) = 1 and p(Y,Z) = -1. What is p(X, Z)? Explain your answer. (8) Suppose that X, Y and Z are random variables such that p(X,Y) = -1 and p(Y,Z) = 0. What...
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