Chapter 11.3, Problem 11PPS

To determine

To find: The expected number of snow days per year.

Answer to Problem 11PPS

Thesum of the weighted value is $3.34$ .

Explanation of Solution

Given:

The given table for the number of snow days per year is shown in Table 1

Days	0	1	2	3	4	5	6	7	8
Probability	0.1	0.1	0.15	0.15	0.25	0.1	0.08	0.05	0.02

Table 1

Calculation:

Consider the table for the sum of weighted values of the each of the variable is shown in Table 2

Days	0	1	2	3	4	5	6	7	8
Probability	0.1	0.1	0.15	0.15	0.25	0.1	0.08	0.05	0.02
Weighted values sum	0	0.1	0.20	0.45	1	0.50	0.48	0.35	0.16

Table 2

Then, the sum of the weighted value is $3.34$ .