Reply With QuoteFind P(1 < X < 2)
Integrate f(x) dx from x=1 to x=2
Consider a continuous random variable X with the density function (called the exponential density)
f(x) =8<: e^-x if x = 0; and 0 otherwise:
a) Find and sketch the cdf for X.
c) Find the mean and variance of X.
d) Find P(1 _ X _ 2).
so far i have this
a) i have a sketch diagram
b) e(x) =1 var(x)= 1 (using the integration method)
c) this is the question i have......i can't seem to understand it properly.
please help johnq
Find P(1 < X < 2)
Integrate f(x) dx from x=1 to x=2
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