Question

Table B
Lake	R	W
Wohlford	3.61	5.76
Poway	2.08	6.30
Discovery	9.70	15.19
El Capitan	1.73	6.30
Elsinore	8.77	16.85
French Valley	2.90	4.50
Perris	7.15	12.25
Hodges	10.25	18.75
Murray	6.10	10.52
San Marcos	4.72	6.98
Salton Sea	4.91	22.15
Santee	2.30	3.06
Otay	1.01	2.38
Skinner	5.00	13.18
Domenigoni	3.69	5.00

Problem 2

Table B presents pairs of observations R_i, W_i, i = 1…15, for a sample of 15 local lakes. R = number of residents per mile of lakefront; W = water pollution index. R and W are jointly distributed across a population of lakes. Use these data to find and record the following:

B)   Sorting -- sort the data in Table B by the name of the lake in alphabetical order, and print the new table.

Answer 1

R : number of residents per mile of lakefront

W : Water pollution index .

If you sort the data by the name of lake in alphabetical order

The first lake name is Discovery with corresponding value of R and W is

R = 9.7 and W = 15.19

The new sorted table is

Lake	R	W
Discovery	9.7	15.19
Domenigoni	3.69	5
El Capitan	1.73	6.3
Elsinore	8.77	16.85
French Valley	2.9	4.5
Hodges	10.25	18.75
Murray	6.1	10.52
Otay	1.01	2.38
Perris	7.15	12.25
Poway	2.08	6.3
Salton Sea	4.91	22.15
San Marcos	4.72	6.98
Santee	2.3	3.06
Skinner	5	13.18
Wohlford	3.61	5.76