AWNOX
Distribution B
X P(X = x;)
0
0.02
0.08
2
0.17
3
0.25
4
0.48
Given the probability distributions shown to the right,
Distribution A
complete the following parts.
X P(X= x)
a. Compute the expected value for each distribution.
0.48
b. Compute the standard deviation for each distribution.
1
0.25
c. What is the probability that x will be at least 3 in Distribution
2 0.17
A and Distribution B?
3
0.08
d. Compare the results of distributions A and B.
4 0.02
a. What is the expected value for distribution A?
=
(Type an integer or decimal rounded to three decimal places as needed.)
What is the expected value for distribution B?
=
(Type an integer or decimal rounded to three decimal places as needed.)
b. What is the standard deviation for distrib&tion A?
(Type an integer or decimal rounded to three decimal places as needed.)
What is the standard deviation for distribution B?
(Type an integer or decimal rounded to three decimal places as needed.)
These three organisms are interdependent on each other for their survival. what will happen if foxes are eliminated from the region? a. there will be more rabbits and less grass in the region. b. there will be more grass and fewer rabbits in the region. c. there will be fewer rabbits and less grass in the region. d. there will be more rabbits and more grass in the region.