In Exercises 49-52, use the bar graph, which shows the receipts of the federal government (in billions of dollars) for selected years from
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- Heart Disease In a certain country, the number of deaths due to heart disease decreased from 235 in one year to 221 in the next year. What percentage decrease in deaths due to heart disease does this represent?arrow_forwardUsing the model in Example 6, estimate the number of cases of flu on day 15.arrow_forwardAmericans' trust in government and the media has generally been on a downward trend since pollsters first asked questions on these topics in the second half of the twentieth century. Trust in government hit an all-time low of 14% in 2014, while trust in the media bottomed out at 32% in 2016. The bar graph shows the percentage of Americans trusting in the government and the media for five selected years. Use this information to answer parts a-c. a. Use the information in the graph to estimate the yearly loss in the percentage of people trusting in government. The yearly loss in the percentage of people trusting in government is 36 %. (Round to the nearest tenth as needed.) b. Write a mathematical model that estimates the percentage, P, of people trusting in government x years after 2003. The mathematical model P = estimates the percentage, P, of people trusting in government x years after 2003. (Use integers or decimals for any numbers in the expression. Use the answer from part (a) to…arrow_forward
- Use the graph below, which shows the average number of weekly viewers of a 30- minute television program (in millions of viewers) from 2000 to 2006. milions of viewers 30 25- ខ 15- 10- 5 2000 2001 2002 2003 2004 2005 2006 year Select one: a. (2001, 2004, 2006} b. (2002, 2003, 2005} c. {1001, 2002, 2005} d. {2004}arrow_forwardD, E and F please, thank you!arrow_forwardThe bar graph shows the average cost of tuition and fees at private four-year colleges in a particular country. Below are two mathematical models for the data shown in the graph. In each formula, T represents the average cost of tuition and fees at private colleges for the school year ending x years after 2000. Answer parts a and b. Average Cost of Tuition and Fees at Private Four-Year Colleges 22 20- 22,051 21,057 20,095 19,128 18,135 18- 16.203 16 15 218 17,168 Model 1 T= 974x+ 15,223 Model 2 T= - 2.1x + 988x + 15,208 14 2000 2001 20022003 2004 2005 2006 2007 a. Use each model to find the average cost of tuition and fees at private colleges for the school vear ending in 2003. By how much does each model underestimate or overestimate the actual cost shown for the school year ending in 2003? HIHE The average cost given by model 1 is $ Round to the nearest dollar.) Help Me Solve This Textbook Get More Help - Clear All Skill Builder Check Answer 10.19 PM 65°F 9/6/2021 Type here to search…arrow_forward
- The following table shows the length, in centimeters, of the humerus and the total wingspan, in centimeters, of several pterosaurs, which are extinct flying reptiles.arrow_forwardThe table below shows total expenditures for colleges and universities in millions of dollars. All data are in current dollars Year 1970 1980 1990 2000 2010 Expenditures 21,053 56,914 134,666 236,734 466,300 Estimate expenditures in 2015. x million dollars Explain your reasoning.arrow_forwardTen out of every 32 people surveyed play among use. What percent of people surveyed play among usearrow_forward
- The data in the picture contains purchase data for golf purchases. Create a doughnut chart in Excel to compare the purchases by gender each year with the US population. Below the chart, explain what it illustrates.arrow_forwardUse excel in this question: The Motion Picture Distributors Association of Australia collects yearly data on gross box office takings of the films in Australia. Data is provided here for the years 1990-2004. (Unfortunately more recent data is not readily available.) Is the highest box office takings for a film related to the number of films screened in Australia that year? Year No. of films screened Highest box office ($ million) 1990 252 26.1 1991 240 19.22 1992 229 18.73 1993 259 31.74 1994 252 24.65 1995 253 17.93 1996 281 29.29 1997 285 22.7 1998 273 47.33 1999 255 38.72 2000 250 30.72 2001 245 32.05 2002 258 33.81 2003 268 37.14 2004 318 50.35 1. Produce a scatterplot of the relevant data. Comment on the appropriateness of analysing this data using a linear regression model. 2. Use the statistics from a regression analysis of this data to evaluate the evidence for a useful predictive linear relationship between the two variables at the 5%…arrow_forward125 Full steps: questions and answers Siti Tourism Management conducted a survey to determine whether there is a relationship between the number of tourists to Malaysia and the monthly income of the tourism industry. The following table shows the number of tourists to Malaysia within eight months (x) (ten thousands), and the monthly income of the tourism industry (y) (RM million). 230 |235 240 500 510 245 248 254 242 y 450 480 519 455 460 Based on the data: a) Draw a scatter diagram to represent these data, explain. b) Coefficient of correlation c) Find the equation of regression linearrow_forward
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