Density and Population The concentration of people or other species in a given area is called the population density. When dealing with population density, we use area instead of volume because it is a better measure of living space. Find the population density of a city by dividing its population by its square mileage.

Part A
Use the Internet to find the population of Ohio. Then use this site to estimate the area of Ohio in square miles. What is your estimate? Use this area to estimate the population density of Ohio.

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Part B
Use the Internet to find the actual area of Ohio. Then find the actual population density of Ohio. How does this compare with your estimate? Why was your initial estimate greater or less than the actual population density?

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Part C
How do you think the population density of Cleveland, a major city in Ohio, compares with the population density of the state? Explain your answer.

Two streets intersect at a 30- degree angle. at the intersection, the are four crosswalks formed that are the same length. what type of quadrilateral is formed by the crosswalks?

If f(x)=-x^2+6x-1 and g(x)=3x^2-4x-1,find(f+g)(x)

Name and describe the three most important measures of central tendency. choose the correct answer below. a. the mean, sample size, and mode are the most important measures of central tendency. the mean of a data set is the sum of the observations divided by the middle value in its ordered list. the sample size of a data set is the number of observations. the mode of a data set is its highest value in its ordered list. b. the sample size, median, and mode are the most important measures of central tendency. the sample size of a data set is the difference between the highest value and lowest value in its ordered list. the median of a data set is its most frequently occurring value. the mode of a data set is sum of the observations divided by the number of observations. c. the mean, median, and mode are the most important measures of central tendency. the mean of a data set is the product of the observations divided by the number of observations. the median of a data set is the lowest value in its ordered list. the mode of a data set is its least frequently occurring value. d. the mean, median, and mode are the most important measures of central tendency. the mean of a data set is its arithmetic average. the median of a data set is the middle value in its ordered list. the mode of a data set is its most frequently occurring value.