A 13 Suppose that P(X = a) = p. P(X = b} = 1- p, a. Show that X-b b. Find Var(X) is a Bernoulli random variable R.D.R EGALA STAT 203 March 4, 2021 A 14 The distribution function of the continuous random variable X is 0, F(x) =31-k a) Find the value of k b) Sketch the graph of F(x) c) Find i. P(X < 4) ii. P(4 6) d) Find the p.d.fof X A 15 A continuous random variable X has the p.d.f. 10- e-a x 20 f(x) 0, x <0 Where c is a constant. a) Find the value of c b) Find the cumu lative distribution function of X and sketch its graph c) Find i) P(X > 8|X > 3) ii) P(X > 1|X < 4)

A First Course in Probability (10th Edition)
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ISBN:9780134753119
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Chapter1: Combinatorial Analysis
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Question
|A 13
Suppose that
P{X = a} = p. P (X = b} = 1– p,
Show that is a Bernoulli random variable
a
b. Find Var(X)
R.D.R EGALA
STAT 203
March 4, 2021
|A 14
The distribution function of the continuous random variable X is
0,
F(x) = 1-k
x23
a) Find the value of k
b) Sketch the graph of F(x)
c) Find
i.
P(X < 4)
ii.
P(4 <X < 5)
ii.
P(X > 6)
d) Find the p.d.f of X
A 15
A continuous random variable X has the p.d.f.
x 20
f(x)
0,
Where c is a constant.
a) Find the value of c
b) Find the cumulative distribution function of X and sketch its graph
c) Find
i) P(X > 8|X > 3)
ii) P(X > 1|X < 4)
Transcribed Image Text:|A 13 Suppose that P{X = a} = p. P (X = b} = 1– p, Show that is a Bernoulli random variable a b. Find Var(X) R.D.R EGALA STAT 203 March 4, 2021 |A 14 The distribution function of the continuous random variable X is 0, F(x) = 1-k x23 a) Find the value of k b) Sketch the graph of F(x) c) Find i. P(X < 4) ii. P(4 <X < 5) ii. P(X > 6) d) Find the p.d.f of X A 15 A continuous random variable X has the p.d.f. x 20 f(x) 0, Where c is a constant. a) Find the value of c b) Find the cumulative distribution function of X and sketch its graph c) Find i) P(X > 8|X > 3) ii) P(X > 1|X < 4)
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