à 12-in. bar that is clamped at both ends is to be sub- ected to an increasing amount of stress until it snaps. Let = the distance from the left end at which the break = ccurs. Suppose Y has pdf f(y) y {(6)H(1-2) 24 0 0≤ y ≤ 12 otherwise Graph the pdf and verify that the total area under the density curve is indeed 1. -. Calculate P(X ≤ 4). How does this probability com- pare to P(X < 4)? • Calculate P(3.5 ≤X ≤ 4.5) and also P(4.5 < X).

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A 12-in. bar that is clamped at both ends is to be sub-
jected to an increasing amount of stress until it snaps. Let
Y = the distance from the left end at which the break
occurs. Suppose Y has pdf
-{(2) (1)
0
C.
f(y) = = 24
V
12
0≤ y ≤ 12
otherwise
a.
Graph the pdf and verify that the total area under the
density curve is indeed 1.
b.
Calculate P(X ≤ 4). How does this probability com-
pare to P(X < 4)?
Calculate P(3.5 ≤X ≤ 4.5) and also P(4.5 < X).
Transcribed Image Text:A 12-in. bar that is clamped at both ends is to be sub- jected to an increasing amount of stress until it snaps. Let Y = the distance from the left end at which the break occurs. Suppose Y has pdf -{(2) (1) 0 C. f(y) = = 24 V 12 0≤ y ≤ 12 otherwise a. Graph the pdf and verify that the total area under the density curve is indeed 1. b. Calculate P(X ≤ 4). How does this probability com- pare to P(X < 4)? Calculate P(3.5 ≤X ≤ 4.5) and also P(4.5 < X).
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