Assume that X is the number of bears spotted by tourists to Banff, Canada. The table below is the probability distribution for X. What is the expected value of X, that is, what is the mean of its distribution?
|
X
|
0
|
1
|
2
|
3
|
4
|
|
Probability
|
0.2
|
0.1
|
0.4
|
0.15
|
0.15
|