4.2. The time, in minutes, it takes to reboot a certain system is a continuous variable with the
density
f(x) = C(10 − x)2, if 0 < x < 10
0, otherwise
(a) Compute C.
(b) Compute the probability that it takes between 1 and 2 minutes to reboot.
compute the probability that it takes more than 5 minutes to reboot.
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