This scatter plot relates the temperature (°C) and ice cream sales ($). How muchmoney would you expect to make in ice cream sales when the temperature is 20°C?Temperature vs. Ice Cream Sales$700$600$500$400$300$200Sales$100$0101214161820 22 2426Temperature °C► $450$500$550$400 Which equation most closely represents the line of best fit for the scatter plotbelow?Number of Customers6050403020RESTAURANTCUSTOMERS1001234Time (hours)Oy=-50x + 10Oy = 10x + 50Oy = 50x10Oy=-10x + 50

Answered: This scatter plot relates the…

Algebra and Trigonometry (6th Edition)

6th Edition

ISBN:9780134463216

Author:Robert F. Blitzer

Publisher:Robert F. Blitzer

ChapterP: Prerequisites: Fundamental Concepts Of Algebra

Section: Chapter Questions

Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...

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Make calculations in excel and explain why did you choose this formula. Put explanations (answers) for each question. Thank you in advance. The below data represent the advertising expenditure and sales of Little Liu Ltd from year 2008 to 2017. Table: Advertising Expenditure vs. Sales from 2008 to 2017 Year Advert. Expenditure Sales (x, £000) (y, £000) 2008 8 30 2009 12 40 2010 11 29 2011 5 29 2012 14 43 2013 3 17 2014 6 20 2015 8 30 2016 4 22 2017 9 40 Total 80 300 a). What is the statistical relationship shown in the Figure and list out 3 characteristics of this relationship? b). Work out the values of parameters of the relationship shown in the Figure (i.e. work out the equation of the relationship). c). Explain the relationship and make a recommendation to Little Liu Ltd based on the information given. Figure: Scatter Diagram of Advertising Expenditure and Sales with…
Solve the problem. The graph shows the average cost of a barrel of crude oil for the years 1981 to 1990 in constant 1996 dollars. Find the approximate average change in price from 1981 to 1990. 1996 S/Barrel 60+ 50- 40- 30+ 20+ 10 47 1981 1982 1983 O About-$44/year O About -$1/year O About-$24/year O About-$4/year heave 1983 1984 1985 Year 17 1986 1987 1988 1989 1990
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Horace keeps track of the amount of time he studies and the score he gets on his quizzes. The data are shown in the table below. Which of the scatter plots below accurately records the data? Hours studying Quiz score 1 2 2 4 3 7 4 7 5 8
B please. Table included
An economist want to determine the relation between one’s FICO score, x, and the interest rate of a 36-month auto loan, y. The given data represent the interest rate (in percent) a bank would offer on a 36-month auto load for various FICO scores. Credit Score;x Interest Rate (percent);y 545 18.982 595 17.967 640 12.218 675 8.612 705 6.68 750 5.15 Find the least-squares regression line treating the FICO score as the explanatory variable and the interest rate as the response variable. Predict the interest rate a person would pay if their FICO score were the median score of 723.
The table below shows the number of hours studying for a math test and the test grade. Study 2 5 1 0 4 2 3 Hours Grade 77 92 70 63 90 75 84 Using technology, determine the equation for the line of best fit. Then, in your own words, determine what this relationship means in this context.
The data below represents how much people use their air conditioner and what their electricity bill is. Write the linear equation that represents this relation to predict how much time people are using their air conditioner. Air conditioner use (hrs) bill amount (dollars)38 22519 1458 18515 19824 21518 2256 10114 15619 25521 19717 18520 24524 15836 25417 3218 1850 2622 23513 15362 52148 45222 25117 17815 9528 25335 32151 41244 12519 32128 11235 25346 15233 41222 30218 11919 20541 13618 2567 14510 35252 125
10. The scatter plot below shows the relationship between the number of T-shirts ordered and the price per shirt, in dollars. Which of the lines drawn is the best model for the relationship shown by the scatter plot? y T-Shirt Orders and Prices Cost per Shirt (in $) 18 16 14 12 10 8 AB C D 6 X 0 100 200 300 400 Number Ordered
TOTAL COST (S) TOPPINGS $4 1 $4.25 $4.50 $4.75 4 $5.00 $5.25 $5.50 Which equation represents the relationship shown in the table? A) y= 0.25x B) y= 4x 0.25 y= 4.25x D) y= 0.25x 4
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A local construction company is trying to reduce costs. It found that the price of steel bars varies considerably from manufacturer to manufacturer. The table below shows the cost of one steel bar from different manufacturers. Calculate the IQR. Cost for One Steel Bar Emerson $4.31 Mannix $6.20 United $5.67 American $2.79 National $3.20 Pracox $3.57 Steelco $5.32 Cost per Steel Bar 7 6 4 3 2 1 O $2.47 O $2.53 O $4.32 O $5.36

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