The sum of all probabilities in a probability model should be equal to 1.
0.25 + 0.18 + 0.30 + 0.17 + x = 1
0.9 + x = 1
x = 0.10
Therefore, the value of x is 0.10.
c. 0.10
if a 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
a. 0.01
b. 0.20
c. 0.10
d. 1
1 answer