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- An electric company charges 10 per month plus 20 for each kilowatt-hour kwh of electricity used. a. Find a function that gives the total cost C of x kwh of electricity. b. Find the total cost of using 775 kwh. c. Find a function that gives the mean cost kwh C, when using x kwh. d. Find the mean cost per kwh when 775 kwh are used. Round to the nearest hundredth. e. Find the mean cost per kwh when 3200 kwh are used. Round to the nearest hundredth.Q3\Create the FDD table for the given data set. Use it to interpolate of consumption for year(1955?.A\For a linear interpolation use the points x=202.7 and x=322.9.B\For a quadratic interpolation use the points x=202.7 , x=322.9 and x=411.2use a graphng utility to the line of best fit for th below data x 2 4 4 6 8 10 y 10 12 13 15 16 20 the line of best fit is y=_____x _______________
- Creat a 5-Number Summary and a box plot for one continuous variable. Are there any outliers in that variable? Thsnk youpediatrician wants to determine the relation that may exist between a child's height and head circumference. She randomly selects 5 children and measures their height and head circumference. The data are summarized below. Complete parts (a) through (f) below. Height (inches), x 27.527.5 27.7527.75 25.525.5 2525 2626 Head Circumference (inches), y 17.517.5 17.617.6 17.117.1 16.916.9 17.317.3 are summarized below. Complete parts (a) through (f) below. Height (inches), x 27.527.5 27.7527.75 25.525.5 2525 2626 Head Circumference (inches), y 17.517.5 17.617.6 17.117.1 16.916.9 17.317.3 (a) Treating height as the explanatory variable, x, use technology to determine the estimates of beta 0β0 and beta 1β1. beta 0β0almost equals≈b 0b0equals= (Round to four decimal places as needed.) beta 1β1almost equals≈b 1b1equals= (Round to four decimal places as needed.) (b) Use technology to compute…Refer to Table: the relative frequency of students working 9 hours or less is: A. 20 B. 100 C. 0.025 D. 0.05
- A student constructs the scatterplot below and concludes that the price increased by the same amount every two years. By referring to the data table do you agree with the student? Explain. The country A Consumer Price Index is approximated by the following formula, where t represents the number of years after 1990. A(t)=100e0.027t For instance, since A(16) is about 154, the amount of goods that could be purchased for $100 in 1990 cost about $154 in 2006. Use the function to determine the year during which costs will be 95% higher than in 1990.A.) use the data from the table to construct tables showing the relationship between fear of walking alone and sex, controlling for whether the individual rents or owns his or her dwelling. B.) does renting versus owning one's dwelling explain the difference in fear between women and men? (Use percentage differences to support your answer) C.) has introducing home ownership shown that the relationship between sex and fear is spurious or is home ownership an intervening variable? Explain.
- An aerobic exercise instructor remembers the data given in the following table, which shows the recommended maximum exercise heart rates for individuals of the given ages. Predict the maximum exercise heart rate of a person who is 72 years old Age (x years) 20 30 40 50 60 Maximum heart rate (y beats per minute) 170 168 153 147 136A firms production function is Q(L) = 15L2 - 1L3 , where output (Q) is a function of a single input labour (L). Find the number of workers required to maximize total For what number of workers is average product maximum? *The symbols are not clear, can this please be redone? Please complete using Microsoft wordd) Prepare the scatter diagram and insert the trendline or line of best-fit. Use a scale of 2 cm to represent 1,000 units on the x-axis & 2 cm to represent $50,000 on the yaxis.e) Using the line of best-fit, determine the company’s fixed cost per month and the variable cost per unit. (Use 0 & 5,000 units.)f) Which of the two methods appear more appropriate? Explain your answer