Basic Mathematics: Statistics, population, efficiency
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16) Below is some salary statistics
a) What percentage is the salary of a high school graduate with no college compared to a person with a bachelor's degree.
17) Consumer Price Index
The table below cites the recent Consumer Price Index values.
Year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
. a) What is the Consumer Price Index?
. b) What was the percentage increase of the CPI from Jan 2000 to Jan 2010?
c) Follow the CPI, if we paid $12,000 for a car in 2005, then how much should we anticipate paying for a car in 2015?
18) The graph below shows a scatterplot of income per year versus number of years of education after high school along with a line that does a fairly good job of running through the middle of the data.
. a) Estimate the slope of the line.
. b) Interpret the slope as a rate with units.
. c) Explain what information this rate is giving us.
19) In 2003, there were 75 turtles living in a nearby wetland. That year, the population began growing by 9 turtles a year. Create a formula for
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16a
From the graph, the salary of a high school graduate with no college is $710.
From the graph, salary of a person with a bachelor's degree is $1170.
Percentage = 710 / 1170 * 100% = 61%
17a
The Consumer Price Index is an index of the variation in prices that the typical consumer pays for retail goods, etc.
b
From the table, CPI in Jan 2000 was 168.800
From the table, CPI in Jan 2010 was 216.687
Percentage increase = (new - old) / old * 100%
= (216.687 - 168.800) / 168.800 * ...
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