To determine the value of X, we need to find the sum of the probabilities for all values of Y and subtract them from 1, since the total sum of probabilities must equal 1 in a probability model.
Sum of probabilities for Y = 0.13 + 0.28 + 0.35 + 0.12 = 0.88
Value of X = 1 - 0.88 = 0.12
Therefore, the value of X in this probability model is 0.12.
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) 0.13 0.28 0.35 0.12 X
1 answer