Statistics
STATISTICS: PROBABILITY DISTRIBUTIONS
Determine whether each distribution is a probability distribution. Justify/explain your reasoning.
1.
|
x |
1 |
2 |
3 |
4 |
5 |
6 |
|
P(x) |
0.02 |
0.34 |
0.18 |
0.26 |
0.05 |
0.15 |
|
Probability Distribution? |
|
|
Why or Why Not? |
|
2.
|
x |
1 |
2 |
3 |
4 |
|
P(x) |
0.31 |
0.08 |
0.48 |
0.16 |
|
Probability Distribution? |
|
|
Why or Why Not? |
|
3.
|
x |
1 |
2 |
3 |
4 |
5 |
|
P(x) |
3/4 |
5/4 |
1/2 |
1/4 |
-7/4 |
|
Probability Distribution? |
|
|
Why or Why Not? |
|
Use the frequency distribution to create a probability distribution.
4. The number of pets per household in Littleville.
|
Pets |
0 |
1 |
2 |
3 |
4 |
5 |
|
Households |
1491 |
425 |
168 |
48 |
29 |
14 |
5. The number of computers per household in Littleville.
|
Computers |
0 |
1 |
2 |
3 |
|
Households |
300 |
280 |
95 |
20 |