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For each probability density function, over the given interval, find
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- Given the probability density function f(x) = over the interval [2, 7], find the expected value, the mean, 5 the variance and the standard deviation. Expected value: Mean: Variance: Standard Deviation: > Next Questionarrow_forwardShow full solution.According to rainfall data collected by a laboratory during storm events, the precipitation level in inches (X) varies jointly with runoff in cubic feet per second (Y). The joint probability mass function (PMF) of both variables are given by the following Table: Y 1 2 3 10 0.05 0.15 0 20 0.1 0.25 0.25 30 0 0.1 0.1 a. What is the probability that the next storm will bring a precipitation of 2 or more inches and a runoff of more than 20 cfs?b. After a storm, a precipitation of 2 inches is measured. What is the probability that the runoff in this storm is 20 cfs or more?c. Are X and Y statistically dependent? Substantiate your answer.arrow_forwardGiven the probability density function f(x)=16f(x)=16 over the interval [2,8][2,8], find the expected value, the mean, the variance and the standard deviation.arrow_forward
- Help me for thisarrow_forwardLet's say p a real function p by: 1 P(x) = 5e x ER a. Why is the function p a probability density? b. In the sequence, X is a random variable with probability density p. Calculate P(X 2 0) ? c. Calculate the expected value of X d. Calculate the variance of Xarrow_forwardfind value of k ?arrow_forward
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- Find the value of c, the expectation of X, and the variance of X.arrow_forwardThis was what WAS given please helpppparrow_forwardThe Binomial random variable X has PMF P(X = x) = a. State the probability distribution table for the random variable X b. Find the expected value of X C. Find the variance of X d. Find the standard deviation of X e. Find P[ux – Ogarrow_forwardarrow_back_iosSEE MORE QUESTIONSarrow_forward_ios
- Glencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw Hill