Question
Determine whether a probability distribution is given. If a probability distribution is given, find its mean...
Determine whether a probability distribution is given. If a probability distribution is given, find its mean and standard deviation. Keep fractional values to 4 significant digits.
For a small community, the probability distribution for the number x who passed away through the last five years is as given in the following table.
x P(x)
0 0.00
1 0.15
2 0.35
3 0.30
4 0.20
- Is this a valid probability distribution?
- If the mean can be calculated, what is it?
- Can the standard deviation be calculated?
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