If the random variable X is uniformly distributed between 10,000 and 12,000, then what is the mean of X?
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If the random variable X is uniformly distributed between 10,000 and 12,000, then what is the
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- Let a random experiment be the casting of a pair of fair five-sided dice and let X equal the maximum of two outcomes. With reasonable assumptions, find pmf of X. Also, find the mean and variance of X.Suppose X is a normally distributed random variable with a mean of 9.00. If the probability that X is less than 9.66 is 0.67, then what is the standard deviation of X?ANSWER ASAPPPPP
- Suppose the amount of time a random customer spends in a grocery store is uniformly distributed between 10 and 65 minutes. What is the probability a random customer will spend less than one hour in the grocery store?The probability of Jack making a free throw is 0.90. Assume one morning, he will attempt 5 shots and each one is independent. Let the random variable X represent the number of free throws he makes in 5 attempts. (Probability distribution of X given in the table) What is the probability that Jack will make a number of free throws out of 5 attempts that is less than the mean of X?A random sample of n = 65 observations is selected from a population with a mean of 25 and s = 16. What is the probability that the sample mean is less than 16?
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- Let X be a chi-squared random variable with 17 degrees of freedom. What is the probability that X is greater than 10?5. Let Y be a normally distributed random variable with mean = 0 and variance a=1. Use the method of transformation to find the probability distribution of U=Y². What is the name of this distribution?Suppose we take a sample of size 30 from a geometrical distribution 200 times. Draw a graph of the distribution of X¯n, this is a histogram of 200 values of the sample mean. Calculate the expected value and variance of X¯n. How is X¯ n distributed - name the distribution. Use an important theorem. Do it in R commander.
