(d) What is the probability that the actual weight is within 0.2 g of the prescribed weight? (Round your answer to four decimal places.) (e) What is the probability that the actual weight differs from the prescribed weight by more than 0.55 g? (Round your answer to four decimal places.)

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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8 Answer the D and E

The actual tracking weight of a stereo cartridge that is set to track at 3 g on a particular changer can be regarded as a continuous rv X with the following pdf.
(x) = { 4 / 1 - (x -
1-(x-3)²] 2≤x≤4
0
otherwise
(a) Sketch the graph of f(x).
f(x)
1.0
0.8
0.6
0.4
0.2
f(x)
1.0
0.8
0.6
0.4
2.0
0.2
2.0
2.5
(b) Find the value of k.
3.0
2.5
3.5
3.0
4.0
3.5
4.5
X
f(x)
1.0
f(x)
1.0
0.8
0.6
hh
0.4
0.2
4.0
4.5
O
0.8
0.6
0.4
0.2
2.0
2.5
2.0
2.5
3.0
(c) What is the probability that the actual tracking weight is greater than the prescribed weight?
3.5
3.0
4.0
3.5
4.5
4.0
4.5
X
(d) What is the probability that the actual weight is within 0.2 g of the prescribed weight? (Round your answer to four decimal places.)
(e) What is the probability that the actual weight differs from the prescribed weight by more than 0.55 g? (Round your answer to four decimal places.)
Transcribed Image Text:The actual tracking weight of a stereo cartridge that is set to track at 3 g on a particular changer can be regarded as a continuous rv X with the following pdf. (x) = { 4 / 1 - (x - 1-(x-3)²] 2≤x≤4 0 otherwise (a) Sketch the graph of f(x). f(x) 1.0 0.8 0.6 0.4 0.2 f(x) 1.0 0.8 0.6 0.4 2.0 0.2 2.0 2.5 (b) Find the value of k. 3.0 2.5 3.5 3.0 4.0 3.5 4.5 X f(x) 1.0 f(x) 1.0 0.8 0.6 hh 0.4 0.2 4.0 4.5 O 0.8 0.6 0.4 0.2 2.0 2.5 2.0 2.5 3.0 (c) What is the probability that the actual tracking weight is greater than the prescribed weight? 3.5 3.0 4.0 3.5 4.5 4.0 4.5 X (d) What is the probability that the actual weight is within 0.2 g of the prescribed weight? (Round your answer to four decimal places.) (e) What is the probability that the actual weight differs from the prescribed weight by more than 0.55 g? (Round your answer to four decimal places.)
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