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Given jointly distributed random variables, X1 and X2, prove that, for any x2 and almost all x1 , FX2|X2(x2| x1) = Fx2(X2) if and only if X1 and X2 are independent.
Statistics and Probability, Statistics
42 credit card holders are selected at random. For each, their current credit card balance is recorded. The average for these 42 people is = $600. Assume that the current balance of all credit card holders follows a norm ...
A homeless shelter program wants to know if receipt of job training program (yes, no) is related to program satisfaction (measured on a multi-item, Likert scale ). What type of statistical test should be used?
Thirty-eight percent of consumers prefer to purchase electronics online. You randomly select 16 consumers. Find the probability that the number who prefer to purchase electronics online is at most 5.
Amy wants to deposit money each year for the next five years and each deposit to have $30,000 in real dollars currently and the inflation rate is 3% per year and the nominal interest rate is 9.18%. (Round off all answers ...
A certain diagnostic test is indicative of problems only if a child scores in the lowest 10% of those taking the test (the 10th percentile). If the mean score is 150 with a standard deviation of 30, what would be the dia ...
Let X(bar) 6 denote the sample mean of a sample X 1 , X 2 , ..., X 6 from Unif (-1, 3). (a) What is the expected value of X(bar) 6 ? (b) What is the variance of X(bar) 6 ?
A? government's department of transportation reported that in? 2009, airline A led all domestic airlines in? on-time arrivals for domestic? flights, with a rate of 83?%. Complete parts a through e below. a. What is the p ...
The bold and italics portion is as far as I've gotten with the equation. Help me finish? And am I on the right track? A survey showed that 1200 of the 1600 adult respondents believe in global warming. (a) Construct a 95% ...
A process is normally distributed with a mean of 104 rotations per minute and a standard deviation of 8.2 rotations per minute. If a randomly selected minute has 118 rotations per minute, would the process be considered ...
Could you please explain this question for me? Pretty struggle with it right now. "The biggest four banks in Australia are too big to fail. With reference to financial system stability, critique this statement."
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