Cost of ElectricityIn the spring of 2015, Duke Energy Progress supplied electricity to residencesin South Carolina for a monthly customer charge of $6.50 plus 9.997¢ perkilowatt-hour (kWh) for the first 800 kWh supplied in the month and 8.997¢ perkWh for all usage over 800 kWh in the month.(a) What is the charge for using 300 kWh in a month?(b) What is the charge for using 1500 kWh in a month?(c) If C is the monthly charge for x kWh, develop a model relating the monthlycharge and kilowatt-hours used. That is, express C as a function of x.
Correlation
Correlation defines a relationship between two independent variables. It tells the degree to which variables move in relation to each other. When two sets of data are related to each other, there is a correlation between them.
Linear Correlation
A correlation is used to determine the relationships between numerical and categorical variables. In other words, it is an indicator of how things are connected to one another. The correlation analysis is the study of how variables are related.
Regression Analysis
Regression analysis is a statistical method in which it estimates the relationship between a dependent variable and one or more independent variable. In simple terms dependent variable is called as outcome variable and independent variable is called as predictors. Regression analysis is one of the methods to find the trends in data. The independent variable used in Regression analysis is named Predictor variable. It offers data of an associated dependent variable regarding a particular outcome.
Cost of Electricity
In the spring of 2015, Duke Energy Progress supplied electricity to residences
in South Carolina for a monthly customer charge of $6.50 plus 9.997¢ per
kilowatt-hour (kWh) for the first 800 kWh supplied in the month and 8.997¢ per
kWh for all usage over 800 kWh in the month.
(a) What is the charge for using 300 kWh in a month?
(b) What is the charge for using 1500 kWh in a month?
(c) If C is the monthly charge for x kWh, develop a model relating the monthly
charge and kilowatt-hours used. That is, express C as a function of x.
Trending now
This is a popular solution!
Step by step
Solved in 3 steps
