Problem 4) If X is a continuous uniform (-5, 5) random variable, find the following: a) What is the PDF of X? b) What is the CDF of X? c) What is ELX?

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Do ##4
X
11:43
1 of 1
Exercise#8
EENG 3421-Advanced Engineering Analysis
Exercise #8
Problem 1) If Y is an exponential random variable with Var[Y] =25, find the following:
a) What is the PDF of Y?
b) What is E[Y]?
c) What is P[Y>5]?
Problem 2) If X is an Erlang (n, λ) random variable with parameter 1/3 and expected value
E[X]-15, find the following:
a) What is the value of the parameter n?
b) What is the PDF of X?
c) What is Var[X]?
Problem 3) If Y is an Erlang (n=2, λ-2) random variable, find the following:
a) What is E[Y]?
b) What is Var[Y]?
c) Find P[0.5Y<1.5].
c) What is E[X]?
d) What is E[X³]?
e) What is Ele?
Problem 4) If X is a continuous uniform (-5, 5) random variable, find the following:
a) What is the PDF of X?
b) What is the CDF of X?
Problem 5) If X is a continuous uniform random variable with expected value E[X] = 7 and
variance Var[X]-3, then what is the PDF of X?
Problem 6) Radars detect flying objects by measuring the power reflected from them. The
reflected power of an aircraft can be modeled as a random variable Y with PDF:
5,6)=²*
0
y20
otherwise
where PO> 0 is some constant. The aircraft is correctly identified by the radar if the reflected power
of the aircraft is larger than its average value. What is the probability P[C] that an aircraft is
correctly identified?
ooo
Transcribed Image Text:X 11:43 1 of 1 Exercise#8 EENG 3421-Advanced Engineering Analysis Exercise #8 Problem 1) If Y is an exponential random variable with Var[Y] =25, find the following: a) What is the PDF of Y? b) What is E[Y]? c) What is P[Y>5]? Problem 2) If X is an Erlang (n, λ) random variable with parameter 1/3 and expected value E[X]-15, find the following: a) What is the value of the parameter n? b) What is the PDF of X? c) What is Var[X]? Problem 3) If Y is an Erlang (n=2, λ-2) random variable, find the following: a) What is E[Y]? b) What is Var[Y]? c) Find P[0.5Y<1.5]. c) What is E[X]? d) What is E[X³]? e) What is Ele? Problem 4) If X is a continuous uniform (-5, 5) random variable, find the following: a) What is the PDF of X? b) What is the CDF of X? Problem 5) If X is a continuous uniform random variable with expected value E[X] = 7 and variance Var[X]-3, then what is the PDF of X? Problem 6) Radars detect flying objects by measuring the power reflected from them. The reflected power of an aircraft can be modeled as a random variable Y with PDF: 5,6)=²* 0 y20 otherwise where PO> 0 is some constant. The aircraft is correctly identified by the radar if the reflected power of the aircraft is larger than its average value. What is the probability P[C] that an aircraft is correctly identified? ooo
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