SOLUTION: 1. The lifetime X of an electronic component has probability density function f(x) = c=x2 for x > 10, and f(x) = 0 otherwise. (a) Determine the value of c. (b) Find the distri

Question 273187: 1. The lifetime X of an electronic component has probability density function
f(x) = c=x2
for x > 10, and f(x) = 0 otherwise.
(a) Determine the value of c.
(b) Find the distribution function F(x) of X.
(c) Find E(X) if it exists.
(d) If an electronic device consists of 6 such components which operate independently,
what is the probability that at least 2 will still be working after 15 time units?
Does E(x) exist? I need help with d)
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Your function equation is garbled.
Cheers,
Stan H.
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