In Exercises, find (a) The mean of the distribution, (b) The standard deviation of the distribution, and
Question:
In Exercises, find
(a) The mean of the distribution,
(b) The standard deviation of the distribution, and
(c) The probability that the random variable is between the mean and 1 standard deviation above the mean.
The length of time (in years) that a seedling tree survives is a random variable t with probability density function defined by ƒ(t) = 0.05e-0.05t for t in [0, ∞).
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