Let X denote the number of hours you study during a randomly selected school day. The probability (pmf) that X can take the values x, has the following form, where k is some unknown constant. P(X = x)· a. Complete the following table X P(X) b. Find the value of k. 0 0.1, if x = 0 kx, if x = 1 or 2 k(5-x), if x = 3 or 4 0, otherwise 1 2 3 4 c. What is the probability that you study at least two hours? d. What is the probability that you study exactly two hours? e. What is the probability that you study at most two hours? f. Compute the expectation E(X) g. Compute variance Var(X
Let X denote the number of hours you study during a randomly selected school day. The probability (pmf) that X can take the values x, has the following form, where k is some unknown constant. P(X = x)· a. Complete the following table X P(X) b. Find the value of k. 0 0.1, if x = 0 kx, if x = 1 or 2 k(5-x), if x = 3 or 4 0, otherwise 1 2 3 4 c. What is the probability that you study at least two hours? d. What is the probability that you study exactly two hours? e. What is the probability that you study at most two hours? f. Compute the expectation E(X) g. Compute variance Var(X
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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VIEWStep 2: a) Determine the table
VIEWStep 3: b) Determine the value of k
VIEWStep 4: c) Determine the probability
VIEWStep 5: d) Determine the probability
VIEWStep 6: e) Determine the probability
VIEWStep 7: f) Determine the expectation
VIEWStep 8: g) Determine the variance
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