Each front tire on a particular type of vehicle is supposed to be filled to a pressure of 26 psi. Suppose the actual air pressure in each tire is a random variable-X for the right tire and Y for the left tire, with joint pdf ĮK(x² + y2) 19 sxs 29, 19 s y s 29 f(x, y) otherwise (a) Determine the conditional pdf of Y given that X = x. for 19 s y s 29 Determine the conditional pdf of X given that Y = y. for 19 s xs 29 (b) If the pressure in the right tire is found to be 22 psi, what is the probability that the left tire has a pressure of at least 25 psi? (It is known that K = Round your answer to three decimal 350,600 places.) Compare this to P(Y 2 25). (Round your answer to three decimal places.) P(Y > 25) = | 3 (c) If the pressure in the right tire is found to be 22 psi, what is the expected pressure in the left tire, and what is the standard deviation of pressure in this tire? (It is known that K = Round 350,600 your answers to two decimal places.) expected pressure psi standard deviation psi

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Each front tire on a particular type of vehicle is supposed to be filled to a pressure of 26 psi. Suppose the actual air pressure in each tire is a random variable—X for the right tire and Y for the left tire, with joint pdf

f(x, y) = 
 
K(x2 + y2)      19 ≤ x ≤ 29, 19 ≤ y ≤ 29
0   otherwise

(a) Determine the conditional pdf of Y given that X = x.

fY|X(y|x) =

 for 19 ≤ y ≤ 29

Determine the conditional pdf of X given that Y = y.

fX|Y(x|y) =

  for 19 ≤ x ≤ 29

(b) If the pressure in the right tire is found to be 22 psi, what is the probability that the left tire has a pressure of at least 25 psi? (It is known that 

K = 
3
350,600
.

 Round your answer to three decimal places.)

Compare this to P(Y ≥ 25). (Round your answer to three decimal places.)
P(Y ≥ 25) = 

(c) If the pressure in the right tire is found to be 22 psi, what is the expected pressure in the left tire, and what is the standard deviation of pressure in this tire? (It is known that 

K = 
3
350,600
.

 Round your answers to two decimal places.)

expected pressure      psi
standard deviation      psi
Each front tire on a particular type of vehicle is supposed to be filled to a pressure of 26 psi. Suppose the actual air pressure in each tire is a random variable-X for the right tire and Y for the left tire, with joint
pdf
19 < x < 29, 19 < y < 29
f(x, y) = {K(x2 + y²)
otherwise
(a) Determine the conditional pdf of Y given that X = x.
for 19 < y < 29
|= (x1a}XU,
Determine the conditional pdf of X given that Y = y.
for 19 < x < 29
(b) If the pressure in the right tire is found to be 22 psi, what is the probability that the left tire has a pressure of at least 25 psi? (It is known that K =
Round your answer to three decimal
350,600
places.)
Compare this to P(Y 2 25). (Round your answer to three decimal places.)
P(Y > 25) =
3
(c) If the pressure in the right tire is found to be 22 psi, what is the expected pressure in the left tire, and what is the standard deviation of pressure in this tire? (It is known that K =
Round
350,600
your answers to two decimal places.)
expected pressure
psi
standard deviation
psi
Transcribed Image Text:Each front tire on a particular type of vehicle is supposed to be filled to a pressure of 26 psi. Suppose the actual air pressure in each tire is a random variable-X for the right tire and Y for the left tire, with joint pdf 19 < x < 29, 19 < y < 29 f(x, y) = {K(x2 + y²) otherwise (a) Determine the conditional pdf of Y given that X = x. for 19 < y < 29 |= (x1a}XU, Determine the conditional pdf of X given that Y = y. for 19 < x < 29 (b) If the pressure in the right tire is found to be 22 psi, what is the probability that the left tire has a pressure of at least 25 psi? (It is known that K = Round your answer to three decimal 350,600 places.) Compare this to P(Y 2 25). (Round your answer to three decimal places.) P(Y > 25) = 3 (c) If the pressure in the right tire is found to be 22 psi, what is the expected pressure in the left tire, and what is the standard deviation of pressure in this tire? (It is known that K = Round 350,600 your answers to two decimal places.) expected pressure psi standard deviation psi
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