The diameter of a particle of contamination (in

Chapter 4, Problem 4E

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QUESTION:

The diameter of a particle of contamination (in micrometers) is modeled with the probability density function \(f(x)=2 x^{3}\) for x > 1. Determine the following:

(a) \(P(X)<2)\)                 (b) \(P(X>5)\)                 (c) \(P(4<X<8)\)

(d) \(P(X<4\) or \(x>8 \text { ) }\)         (e) x such that \(P(X<x)=0.95\)

Equation transcription:

Text transcription:

f(x)=2 x^{3}

P(X)<2)

P(X>5)

P(4<X<8)

P(X<4

x>8 { ) }

P(X<x)=0.95

Questions & Answers

QUESTION:

The diameter of a particle of contamination (in micrometers) is modeled with the probability density function \(f(x)=2 x^{3}\) for x > 1. Determine the following:

(a) \(P(X)<2)\)                 (b) \(P(X>5)\)                 (c) \(P(4<X<8)\)

(d) \(P(X<4\) or \(x>8 \text { ) }\)         (e) x such that \(P(X<x)=0.95\)

Equation transcription:

Text transcription:

f(x)=2 x^{3}

P(X)<2)

P(X>5)

P(4<X<8)

P(X<4

x>8 { ) }

P(X<x)=0.95

ANSWER:

Step 1 of 7

Probability Density Function for a continuous random variable X s a function such that

So, with  for  x > 1. The general PDF can be written as,

 

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