Question

If The table below represents a probability model , what is the value of x ? P(Y) 0.25, 0.18,0.30,0.17 x

Answer 1

Since the sum of all probabilities in a probability model should be equal to 1, we can use this information to find the value of x.

0.25 + 0.18 + 0.30 + 0.17 + x = 1

0.9 + x = 1

x = 1 - 0.9

x = 0.1

Therefore, the value of x is 0.1.