The random variable x has the following discrete probability distribution. x 10 11 12 13 14...
The random variable x has the following discrete probability distribution.
|
x |
10 |
11 |
12 |
13 |
14 |
|
|---|---|---|---|---|---|---|
|
p(x) |
0.20.2 |
0.10.1 |
0.20.2 |
0.30.3 |
0.20.2 |
Since the values that x can assume are mutually exclusive events, the event
{xless than or equals≤12}
is the union of three mutually exclusive events,
{x=10}∪(x=11}∪{x=12}.
Complete parts a through e.
a. Find
P(xless than or equals≤12).
P(xless than or equals≤12)equals=nothing
b. Find
P(xgreater than>12).
P(xgreater than>12)equals=nothing
c. Find
P(xless than or equals≤14).
P(xless than or equals≤14)equals=nothing
d. Find
P(xequals=14).
P(xequals=14)equals=nothing
e. Find
P(xless than or equals≤11
or
xgreater than>12).
P(xless than or equals≤11
or
xgreater than>12)equals=nothing
Homework Answers
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