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
0.01
0.01
0.20
0.20
1
1
0.10
To find the value of x, we need to add up all the probabilities and set it equal to 1 (since probabilities must sum up to 1 in a probability model):
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.