The table below gives the estimated world population (in billions) for various years. 1980 1990 1997 2000 2005 2011 Years Population 4400 5100 5852 6080 6450 7000 What is the coefficient of determination? O About 65.90% of the variation in the number of years is explained by the variation in the world's population. O About 99.6% of the variation in the world's population is explained by the number of years. O About 99.6% of the variation in the number of years is explained by the variation in the population. O About 65.90% of the variation in the world's population is explained by the number of years

The table below gives the estimated world population (in billions) for various years. 1980 1990 1997 2000 2005 2011 Years Population 4400 5100 5852 6080 6450 7000 What is the coefficient of determination? O About 65.90% of the variation in the number of years is explained by the variation in the world's population. O About 99.6% of the variation in the world's population is explained by the number of years. O About 99.6% of the variation in the number of years is explained by the variation in the population. O About 65.90% of the variation in the world's population is explained by the number of years

Elementary Algebra

17th Edition

ISBN:9780998625713

Author:Lynn Marecek, MaryAnne Anthony-Smith

Publisher:Lynn Marecek, MaryAnne Anthony-Smith

Chapter6: Polynomials

Section6.2: Use Multiplication Properties Of Exponents

Problem 168E: Depreciation Once a new car is driven away from the dealer, it begins to lose value. Each year, a...

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Depreciation Once a new car is driven away from the dealer, it begins to lose value. Each year, a car loses 10% of its value. This means that each year the value of a car is 90% of the previous year’s value. If a new car was purchased for $20,000, the value at the end of the first year would be $20000(0.90) and the value of the car after the end of the second year would be $20000(0.90)2. Complete the table shown below. What will be the value of the car at the end of the eighth year? Simplify the expression, to show the value in dollars.
Estimate the age of a newly discovered fossil for which the ratio of carbon-14 to carbon-12 is R=1/1014.
In a survey conducted at the beginning of 2010, a hypothetical country with a total land area of 300,000 square kilometers had a population density of 362.6 per square kilometer. 4. On the same year, the population growth rate was a. -5% b. 3% c. 2.1% d. 1% 5. If the growth rate remained constant, the population will be doubled in a. 69 years b. 33 years c. 23 years d. 19 years 6. What was the population of the country during 2011? a. 109,867,800 b. 109,323,900 c. 110,411,700 d. 111,064,380 7. What was the population density of the country during 2011? a. 368.03/km2 b. 364.41/km2 c. 366.23/km2 d. 370.22/km2
In a survey conducted at the beginning of 2010, a hypothetical country with a total land area of 300,000 square kilometers had a population density of 362.6 per square kilometer. 1. On the same year, the population growth rate was A. -5% B. 3% C. 2.1% D. 1% 2. If the growth rate remained constant, the population will be doubled in A. 69 years B. 33 years C. 23 years D. 19 years 3. What was the population of the country during 2011? A. 109,867,800 B. 109,323,900 C. 110,411,700 D. 111,064,380
The table below displays full-time annual tuition for the 2018-19 academic year at Princeton University in Princeton, NJ and Columbus State Community College in Columbus, OH. 2018-19 Princeton University $50,340 Columbus State Community College $4,284 Part 1 - Princeton University The tuition at Princeton University increased by $3,420 for the 2019-2020 academic year. By what percentage did the tuition at Princeton increase? Round the percentage to one decimal place. % Part 2 - Columbus State Community College The tuition at Columbus State Community College increased by $536 for the 2019-2020 academic year. By what percentage did the tuition at Columbus State increase? Round the percentage to one decimal place. %
A study was done to look at the relationship between number of vacation days employees take each year and the number of sick days they take each year. The results of the survey are shown below. Vacation Days 13 13 14 4 10 10 6 10 Sick Days 0 0 0 6 0 1 1 0 r2r2 = (Round to two decimal places) Interpret r2r2 : There is a large variation in the number of sick days employees take, but if you only look at employees who take a fixed number of vacation days, this variation on average is reduced by 62%. There is a 62% chance that the regression line will be a good predictor for the number of sick days taken based on the number of vacation days taken. 62% of all employees will take the average number of sick days. Given any group with a fixed number of vacation days taken, 62% of all of those employees will take the predicted number of sick days. The equation of the linear regression line is: ˆyy^ = + xx (Please show your answers to two decimal places) Use the…
The table shows the historical in-state tuition rates for the University of Kalamazoo. Use the data to answer the questions and round your answers to two decimal places. Academic year Rate of tuition for one semester 2008–2009 $3,812 2009–2010 $4,002 2010–2011 $4,441 2011–2012 $4,905 2012–2013 $5,181 What is the percentage increase in tuition from the 2008–2009 school year to the 2012–2013 school year?
Listed below is the Fan Cost Index of the NBA for a given year. Find the percent of increase of the NBA FCI from 2012 to 2105. 2012 2013 2014 2015 NBA $315.66 $326.30 $333.53 $339.02
A sample of twenty people went on a cruise to Europe. Their two-week weight gain is shown below (a weight loss is shown by a negative number.) Weight Gain Frequency -2 4 0 5 2 8 5 2 9 1 Find the average weight gain in pounds?
Suppose that the unadjusted seasonal factor for the month of April is 1.10. The sum of the 12 months' unadjusted seasonal factor values is 12.18. The normalized (adjusted) seasonal factor value for April
The data in the table is the number of absences for 7 students and their corresponding grade. Number of Absences Grade0 5.51 52 4.53 3.55 37 2.58 2 Step 3 of 3: Calculate the coefficient of determination, r^2. Round your answer to three decimal places.
The table shows the decay factor for a number of different populations. For each population, find the percent decay rate. Population A B C D E Decay Factor 0.7 0.08 0.81 0.885 0.092 Decay Rate (%) ? ? ? ? ?