Calculus and Above

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Consider a random sample X1,X2,…,Xn from a random variable
Consider a random sample X1,X2,…,Xn from a random variable X, and the following estimator:θ^=∑ni=1X2inWhich of the following statements are correct?(multiple choices allowed)Select one or more: a. The… read more
Kofi
Kofi
Ph.D.
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I have questions about statistical intereference. Suppose X
Suppose X = 1 (X1 + X2 ), where X1 , X2 are independent and P (Xi = 1) = p, P (Xi = 0) = (1 − p) for i = 1, 2. … read more
Dr Arthur Rubin
Dr Arthur Rubin
Doctoral Degree
Doctoral Degree
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Assume that x1 = −2, and xn+1 = 2xn/3 + 4/3x^2 n for n ≥ 1.
Assume that x1 = −2, and xn+1 = 2xn/3 + 4/3x^2 n for n ≥ 1. Prove that (xn) is convergent.… read more
akch2002
akch2002
Master's Degree
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I have a function Y = X1 * X2 X1 is a discrete variable
I have a function Y = X1 * X2 X1 is a discrete variable between the range (0,100) and X2 is also a discrete variable in the same range of (0,100). I have computed ALL possible values of Y for each of … read more
R.R. Jha
R.R. Jha
Bachelor's Degree
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Let X1,…,Xn∼ Uniform(0,θ). Let θ~=2X¯n. Find the bias,
Let X1,…,Xn∼ Uniform(0,θ). Let θ~=2X¯n. Find the bias, standard error, and MSE of this estimator. Let θ^=max{X1,…,Xn}. Find the bias, standard error, and MSE of this estimator. Hint: First compute the… read more
Ryan
Ryan
Bachelor's Degree
4,665 satisfied customers
This is part of a homework set concerning Markov jump
This is part of a homework set concerning Markov jump processes. If Xi, i = 1, 2, 3, are independent exponential random variables with rates λi, i = 1, 2, 3, find • P(X1 < X2 < X3), • P(X1 < … read more
Dr Arthur Rubin
Dr Arthur Rubin
Doctoral Degree
Doctoral Degree
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1. Let events An increase to A. Find A and show P(An ) -> P(A).
1. Let events An increase to A. Find A and show P(An ) -> P(A). Show the same thing in the decreasing case. Use these results to show that a df F is right continuous, F(oo)=1, F(-oo)=0. 2. Let X be… read more
Stevewh
Stevewh
Teacher
Bachelor's Degree
6,427 satisfied customers
1. (1pt) How many ways can n men and n women be seated alternating
1. (1pt) How many ways can n men and n women be seated alternating gender around a round table remembering that two seating positions are equivalent if everyone is in the same position relative to eve… read more
Stevewh
Stevewh
Teacher
Bachelor's Degree
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Now we will use this formula to calculate successive approximation
Now we will use this formula to calculate successive approximation in the following example. We will keep track of the approximation in a table. Consider the equation: f(x)=4x^4-4x^2 (fill in the deci… read more
Math-John
Math-John
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1. Let Y be binomial(15, 1/3). Evaluate V ar(Y ). Note: You
1. Let Y be binomial(15, 1/3). Evaluate V ar(Y ). Note: You must show your work. 2. Let X be a uniform((0, 1)) rv. Set Y = −log(X). Calculate the pdf of Y . 3. Three people each roll a fair 6 sided di… read more
rajeevanpillai
rajeevanpillai
Master's Degree
Master's Degree
439 satisfied customers
write down the first 5 terms of the sequence x n+1 =f(xn) for
write down the first 5 terms of the sequence x n+1 =f(xn) for a chosen function of x and the formula for the nth term… read more
Sandhya
Sandhya
Master's Degree
5,038 satisfied customers
write down the first 5 terms of the sequence x n+1 =f(xn)
write down the first 5 terms of the sequence x n+1 =f(xn) Please note that the n+1 is placed under the x ( base to the power of) and the n in the brackets goes under the x.like a power but when its un… read more
Sandhya
Sandhya
Master's Degree
5,038 satisfied customers
I am having trouble finding out how to calculate the answer
I am having trouble finding out how to calculate the answer to this statistics question using Multiple Linear Regression and Coefficients to find the confidence interval. I am given the following info… read more
Math-John
Math-John
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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
statwaves
Doctoral Degree
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Let X1,X2,...,Xn be a random sample from a population with
Let X1,X2,...,Xn be a random sample from a population with pdf fX(x)=1/Q if 0… read more
statwaves
statwaves
Doctoral Degree
10 satisfied customers
Susan Athena Exercise 5 In random samples of 25 from
Susan Athena Exercise 5 In random samples of 25 from each of two normal populations, we found the following statistics: X1 = 524 S1 = 129 X2 = 469 S2 = 141 a. Estimate the difference between the two p… read more
SusanAthena
SusanAthena
Master's Degree
Master's Degree
102 satisfied customers
X are iid random variables with symmetrical distribution f(x),
X are iid random variables with symmetrical distribution f(x), mu and sigma. Minimize the sum of absolute value of (Xi - b) wrt b. b turns out to be the median but how do we get there?… read more
Stevewh
Stevewh
Teacher
Bachelor's Degree
6,427 satisfied customers
Medical stats help needed If you have a large number (71)
Medical stats help needed: If you have a large number (71) in each group , can you use a parametric test (paired t-test) even if you are unsure of a gaussian distribution? Would you then also be justi… read more
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