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4.183 If Y has a log-normal dis Ε( The grains composing p distribution. For a type o and o = 4 (in units of 10 a Find the mean and v b Find an interval in Tchebysheff's theore

4.183 If Y has a log-normal dis Ε( The grains composing p distribution. For a type o and o = 4 (in units of 10 a Find the mean and v b Find an interval in Tchebysheff's theore

A First Course in Probability (10th Edition)
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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4.183 a b 2). b P(Y> 8). If Y has a log-normal distribution with parameters μ and o², it can be shown that (eg² - 1). C and V (Y) = e²μ+0² The grains composing polycrystalline metals tend to have weights that follow a log-normal distribution. For a type of aluminum, gram weights have a log-normal distribution with μ = 3 and o = 4 (in units of 10-2 g). = e(μ+o²)/2 6 E(Y) = lie. [Hint: Use Find the mean and variance of the grain weights. Find an interval in which at least 75% of the grain weights should Tchebysheff's theorem.] Find the probability that a randomly chosen grain weighs less than the mean grain weight. by
Transcribed Image Text:4.183 a b 2). b P(Y> 8). If Y has a log-normal distribution with parameters μ and o², it can be shown that (eg² - 1). C and V (Y) = e²μ+0² The grains composing polycrystalline metals tend to have weights that follow a log-normal distribution. For a type of aluminum, gram weights have a log-normal distribution with μ = 3 and o = 4 (in units of 10-2 g). = e(μ+o²)/2 6 E(Y) = lie. [Hint: Use Find the mean and variance of the grain weights. Find an interval in which at least 75% of the grain weights should Tchebysheff's theorem.] Find the probability that a randomly chosen grain weighs less than the mean grain weight. by
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