The Energy Information Administration of the U.S. Department of Energy providedtime series data for the U.S. average price per gallon of conventional regular gasolinebetween January 2007 and February 2014 (Energy Information Administration website,March 2014). Use the Internet to obtain the average price per gallon of conventionalregular gasoline since February 2014.a. Extend the graph of the time series shown in Figure 1.1.b. What interpretations can you make about the average price per gallon of conventionalregular gasoline since February 2014?c. Does the time series continue to show a summer increase in the average price pergallon? Explain.
Unitary Method
The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.
Speed, Time, and Distance
Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.
Profit and Loss
The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.
Units and Measurements
Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.
The Energy Information Administration of the U.S. Department of Energy provided
time series data for the U.S. average price per gallon of conventional regular gasoline
between January 2007 and February 2014 (Energy Information Administration website,
March 2014). Use the Internet to obtain the average price per gallon of conventional
regular gasoline since February 2014.
a. Extend the graph of the time series shown in Figure 1.1.
b. What interpretations can you make about the average price per gallon of conventional
regular gasoline since February 2014?
c. Does the time series continue to show a summer increase in the average price per
gallon? Explain.
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