Question

Lbs plastic waste	0.27	1.41	2.19	2.83	2.19	1.81	0.85	3.05
# in household	2	3	3	6	4	2	1	5

1. What is the linear correlation between list of plastic waster per week and household size?

2. What is the proportion of variance explained (coefficient of determination)?

3. Predict the number of people in a household with 2.5lbs of waste

Answer 1

1. What is the linear correlation between list of plastic waster per week and household size?

Linear correlation r = 0.8424

2. What is the proportion of variance explained (coefficient of determination)?

Coefficient of determination R² = 0.7096

3. Predict the number of people in a household with 2.5lbs of wast

using linear regression model,

# in household= 0.5497 + 1.4799 * Lbs plastic waste

Lbs plastic waste = 2.5

# in household = 0.5497 + 1.4799*2.5

= 4.2495