Homework SourseQuestion 15 In the table above find PX 7 Hint What is one o
Question 15
In the table above, find P(X = 7). Hint: What is one of the properties of a valid probability distribution?
| x | P(X = x) |
| 2 | 0.51 |
| 5 | 0.29 |
| 7 | ? |
Solution
for a valid probability distribution
sum of P(X) = 1
=>
P(2) + P(5) + P(7) =1
=>
P(7) = 1 - 0.51 - 0.29
= 0.2
