Let X = the time it takes a read/write head to locate a desired record on a computer disk memory device once the head has been positioned over the correct track. If the disks rotate once every 25 millisec, a reasonable assumption is that X is uniformly distributed on the interval [0, 25].
a. Compute P(10 ≤ X ≤ 20).
b. Compute P(X ≥ 10).
c. Obtain the cdf F(X).
d. Compute E(X) and σx
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