Probability Unit Test
10 of 1510 of 15 Items
Question
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
0.10
0.10
1
1
0.20
0.20
0.01
0.01
To find the value of x, we add up the given probabilities and subtract it from 1 since the sum of all probabilities must equal 1.
0.25 + 0.18 + 0.30 + 0.17 + x = 1
x = 1 - 0.25 - 0.18 - 0.30 - 0.17
x = 0.10
Therefore, the value of x is 0.10.