Calculus and Above

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Finding Probabilities in Uniform Distributions The
Finding Probabilities in Uniform DistributionsThe probability density of a random variable X is given in the figure below. The random variable is uniformly distributed between 0 and 2.From this densit… read more
Kofi
PhD in Statistics
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Finding Probabilities in Uniform Distributions The time it
Finding Probabilities in Uniform DistributionsThe time it takes me to wash the dishes is uniformly distributed between 11 minutes and 21 minutes. The probability density function is f(x) = 1/10.What i… read more
Kofi
PhD in Statistics
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The RTA commuter train has a waiting time of 8 minutes
The RTA commuter train has a waiting time of 8 minutes during peak rush hour periodsState the random variable Find the height of this uniform distribution Find the probability of waiting between 4 and… read more
akch2002
Master's Degree
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Let X and Y be independent random variables. The pdfs of X
Let X and Y be independent random variables. The pdfs of X and Y are: fX(x) = e−x for x>0 fY(y) = e−y for y>0. FindP(X+Y >1).… read more
Kofi
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1. The continuous random variable X, has a uniform
1. The continuous random variable X, has a uniform distribution over the interval from 23 to 43. a) What in the probability density function in the interval between 23 to 43?b) What is the probability… read more
akch2002
Master's Degree
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If X is a normally distributed random variable with a mean
If X is a normally distributed random variable with a mean of 25 and a standard deviation of 3.8, what is the probability that an instance of X, Xi, will be greater than 24.544?… read more
Sandhya
Master's Degree
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I have some equations I am trying to figure out and verify
I have some equations I am trying to figure out and verify if I am right but I will like the equations to be attached, how do I get these equations to the expert… read more
Mr. Gregory White
Master's Degree
Master's Degree
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1. (a) Use the definition of moment generating functions to
1. (a) Use the definition of moment generating functions to show that if MX(t) is the mgf of a continuous random variable X, then if Y = (X+a)/b, MY (t) = e^(a/b)t MX(t/b) ￼￼ (b) Choose appropriate co… read more
Expert
1. The cashier service time at the local branch of the Rivertown
1. The cashier service time at the local branch of the Rivertown bank has an exponential distribution with a mean of 2.5 minutes. What is the probability that the service time: Is between 2 and 4 minu… read more
akch2002
Master's Degree
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1. Five males with a particular genetic disorder have one child
1. Five males with a particular genetic disorder have one child each. The random variable x is the number of children among the five who inherit the genetic disorder. Determine whether the table descr… read more
Ryan
Bachelor's Degree
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The density function of a random variable X is given by f(x)=1/5
The density function of a random variable X is given by f(x)=1/5 sqrt 2pi e ^ -(x+1.3)^2/50. Find its math expectation, variance and distribution function… read more
Osbert12
Master's Degree
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The density function of a random variable X is given by f(x)=1/5
The density function of a random variable X is given by f(x)=1/5 sqrt 2pi e ^ -(x+1.3)^2/50. Find its math expectation, variance and distribution function… read more
Math-John
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Helllo my question for Business statistics is The area under
Helllo my question for Business statistics is The area under the normal curve between z = 0 and z = 1 is ___ the area under the normal curve between z = 1 and z = 2 The choices are 1) less than 2) gre… read more
SusanAthena
Master's Degree
Master's Degree
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Exam scores were normal in MIS 200. Jason's exam score was
Exam scores were normal in MIS 200. Jason's exam score was 1.41 standard deviations above the mean. What percentile is he in? A.68th B.84th C.75th D.92nd To convert a normally distributed variable X i… read more
Osbert12
Master's Degree
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I.a. Suppose we want to determine the (binomial) probability
I. a. Suppose we want to determine the (binomial) probability (p) of getting 0 (zero) heads in 5 flips of a 2-sided coin. Using Table 2 in Appendix B of the text, what values of n, x, and p would we u… read more
dhouse1940
Master's Degree
Master's Degree
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Let X1,X2,...,Xn represent a random sample from a population
Attachment: 2012-04-24_132012_img.pdf Let X1,X2,...,Xn represent a random sample from a population with a gamma(2,b) distribution, i.e. its probability density function is given by f(x;b) =(xe^(-x/b))… read more
statwaves
Doctoral Degree
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Use the inverse transform method to generate a random variable
Use the inverse transform method to generate a random variable X having the distribution Pr(X=i)= 1/[i(i+1)] , i=1,2,.... Write the algorithm, but you don't need to implement it. Hint: Determine the d… read more
Osbert12
Master's Degree
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The probability distribution table at the right is of the discrete
The probability distribution table at the right is of the discrete random variable x representing the number of patients waiting outside of a doctor's office. Answer the following: x P(X=x) (a) Determ… read more
Stevewh
Teacher
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