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Education The amount of time (in hours per week) a student utilizes a math-tutoring center roughly follows the
where
(a) Use a graphing utility to graph the function.
(b) From the graph in part (a), estimate the average number of hours per week a student uses the tutoring center.
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Chapter 5 Solutions
EBK COLLEGE ALGEBRA
- Education The amount of time (in hours per week) a student utilizes a math-tutoring center roughly follows the normal distribution y=0.7979ex5.42/0.5,4x7 where x is the number of hours. (a) Use a graphing utility to graph the function. (b) From the graph in part (a), estimate the average number of hours per week a student uses the tutoring center.arrow_forwardFarms in the United States The graph gives the number of farms in the United States from 1850 to 2000. aEstimate the average rate of change in the number of farms between i 1860 and 1890 and ii 1950 and 1970. bIn which decade did the number of farms experience the greatest average rate of decline?arrow_forwardDVD Player sales The table shows the number of DVD play-ers sold in a small electronics store in the years 2003-2013. What was the average rate of change of sales between 2003 and 2013? Whatwas the average rate of change of sales between 2003 and 2004? What was the average rate of change of sales between 2004 and 2005? Between which two successive years did DVD player sales increase most quickly?arrow_forward
- Fill in the blanks. Statisticians use a measure called the ________ of the ________ ________ to find a model that approximates a set of data most accurately.arrow_forwardMobile Phone Sales In 2000, mobile handset sales totaled 414.99million. In 2005, the total was 778.75million. Let M=M(t) denote total mobile handset sales in year t. What was the average rate of change per year in M(t) from 2000 to 2005? Be sure to include proper units with your answer.arrow_forwardAverage Rate of Change Graphs of the functions f, g, and h are shown below. What can you say about the average rate of change of each function on the successive intervals 0, 1, 1, 2, 2, 3, ?arrow_forward
- Find slope Find y intercept Find correlation and RSMEarrow_forwarddata needed to complete image A professor timed all students in his Statistics class for how long it took them to complete the final exam. The results are given below, in minutes. 92 65 70 84 170 110 115 100 135 105 120 165 145 150 75 100 155 95 88 125 96 145 115 170 160 150 90arrow_forwardProbability and Statistics for CS Do both parts of this problem. For part (b) of this problem, simulate with N = 105 trials and submit your answer as a graph (plot) of a function of p where p = 0.1, 0.2, ... , 0.9, 1. Submit your code for this problem by pasting it in your pdf, not in a separate file.arrow_forward
- Check Imagearrow_forwardI need help on my homeworkarrow_forwardA regression was run to determine if there is a relationship between hours of TV watched per day (x) and number of situps a person can do (y) The results of the regression were: учах+b a-1.25 b-35.644 r2 .541696 r=-0.736 Use this to predict the number of situps a person who watches 10 hours of TV can do (to one decimal place)arrow_forward
- Trigonometry (MindTap Course List)TrigonometryISBN:9781337278461Author:Ron LarsonPublisher:Cengage LearningFunctions and Change: A Modeling Approach to Coll...AlgebraISBN:9781337111348Author:Bruce Crauder, Benny Evans, Alan NoellPublisher:Cengage Learning
- College AlgebraAlgebraISBN:9781305115545Author:James Stewart, Lothar Redlin, Saleem WatsonPublisher:Cengage LearningAlgebra and Trigonometry (MindTap Course List)AlgebraISBN:9781305071742Author:James Stewart, Lothar Redlin, Saleem WatsonPublisher:Cengage Learning
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