The continuous random variable X has probability density function (pdf) 1 fx(x) 20 - 0 x).

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter2: Equations And Inequalities
Section2.1: Equations
Problem 78E
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The continuous random variable X has probability density function (pdf)
fx(x)
20
- 0 < x<0
Show that the cumulative distribution function (cdf) of X is
0 + x
Fx (x)
- 0 <x<0
%D
20
Deduce an expression for P(X > x).
Transcribed Image Text:The continuous random variable X has probability density function (pdf) fx(x) 20 - 0 < x<0 Show that the cumulative distribution function (cdf) of X is 0 + x Fx (x) - 0 <x<0 %D 20 Deduce an expression for P(X > x).
The distribution function of the continuous random variable X is
0,
x< 3
F(x) =
1- k
x 2 3
x²
a) Find the value of k
b) Sketch the graph of F (x)
c) Find
i.
Р(X < 4)
ii.
P(4 < X < 5)
iii.
Р(X > 6)
d) Find the p.d.f of X
Transcribed Image Text:The distribution function of the continuous random variable X is 0, x< 3 F(x) = 1- k x 2 3 x² a) Find the value of k b) Sketch the graph of F (x) c) Find i. Р(X < 4) ii. P(4 < X < 5) iii. Р(X > 6) d) Find the p.d.f of X
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