The distribution of brood size X (number of young in a nest) of a certain species of bird is given as follows:
|
Brood Size
X
|
P (X = x)
|
|
1
|
0.082
|
|
2
|
0.108
|
|
3
|
0.378
|
|
4
|
0.189
|
|
5
|
0.243
|
- Find the Pr ( 2 ? X ? 4 )
- Find the population mean of X
- Find the population standard deviation of X