Question

Let z denote a random variable having a normal distribution with μ = 0 and σ...

Let z denote a random variable having a normal distribution with μ = 0 and σ = 1. Determine each of the following probabilities. (Round all answers to four decimal places.)

P(z < −1.5 or z > 2.50) =

Let z denote a variable that has a standard normal distribution. Determine the value z* to satisfy the following conditions. (Round all answers to two decimal places.)

P(z > z* or z < −z*) = 0.2009
z* =

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Homework Answers

Answer #1

Z~N(0,1)

a).

[ from standard normal table]

b).according to the problem:-

[ in any blank cell of excel type =NORMSINV(0.89955) press enter ]

*** if you have any doubt regarding the problem please write it in the comment box.if you are satisfied please give me a LIKE if possible..

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