A food company offers 3 different meals: sopa, caldo and rice. The prices of the meals are $15.00, $25.00 y $22.00 respectively, based on an study the customers ask for the meals in this way, 27% soup, 55% caldo and 18% rice.
a. Is this a discrete probability distribution? Why?
b. Calculate the average amount charged per meal
c. What is the variance in the charge of the meals?
d. What is the standard deviation? Interprete the results.
e. Graph the probability distribution
|
Ratio of change
|
Number of days
|
|
- 1 / 4
|
6
|
|
- 1 / 8
|
10
|
|
0
|
8
|
|
1 / 8
|
12
|
|
1 / 4
|
11
|
|
1 / 2
|
3
|