If the table below represents a probability model based on observed frequencies, what is the value of x ? Y C A R E S P(Y) 0.25 0.18 0.30 0.17 x (1 point) Responses 0.20 0.20 1 1 0.10 0.10 0.01

Answer 1

The sum of all probabilities must add up to 1.

0.25 + 0.18 + 0.30 + 0.17 + x = 1
0.90 + x = 1
x = 0.10

Therefore, the value of x is 0.10