Question

30
0
20
What is the expected value

Answer 1

E
(
X
)
=
∑
(
Value of X
)
×
(
Probability of X
)
=
−
30
∗
0.40
+
10
∗
0.30
+
20
∗
0.20
+
60
∗
0.10
=
−
12
+
13
=
1