If the table below represents a probability model based on observed frequencies, what is the value of a?
Y CARES
P(Y) 0.25 0.18 0.30 0.17 x
(1 point)
© 0.01
• 0,20
0 0.10
0 1
Since the sum of all probabilities must equal 1, we can calculate the value of x by subtracting the sum of the other probabilities from 1:
0.25 + 0.18 + 0.30 + 0.17 + x = 1
x = 1 - (0.25 + 0.18 + 0.30 + 0.17) = 1 - 0.9 = 0.1
Therefore, the value of a is 0.10.