If the table below represent a probability model based on observed frequencies, what is the value of x? * 1 point 0.05 0.10 0.01 0.50
X= P (X)
B= 0.30
E=0.25
A=0.20
R=0.15
S= x
The values for P(X) must sum up to 1 in a probability model. Therefore, to find the value of x, we need to add up the existing probabilities and subtract that sum from 1.
Given probabilities:
B=0.30
E=0.25
A=0.20
R=0.15
Sum of existing probabilities:
0.30 + 0.25 + 0.20 + 0.15 = 0.90
Subtracting the sum from 1 to find x:
1 - 0.90 = 0.10
Therefore, the value of x is 0.10.