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 answer

To find the value of x, we need to add up the probabilities of all the events and set it equal to 1 (since the sum of all probabilities must equal 1 in a probability model).

0.25 + 0.18 + 0.30 + 0.17 + x = 1

0.90 + x = 1

x = 1 - 0.9

x = 0.10

Therefore, the value of x is 0.10.