
Concept explainers
Table 18 gives the probability distribution of the random variable X.
Table 18
k |
|
1 |
.30 |
2 |
.40 |
3 |
.20 |
4 |
.10 |
(a) Draw the histogram for X.
(b) Find
(c) Find the probability that X is at least 2.
(d) Find the probability that
(e) Find the probability distribution of 2X.

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