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- SOLVE STEP BY STEP IN DIGITAL FORMAT 4. Four items of which 10% are known to be defective are purchased. Let X be the v.a. which denotes the number of defective items among the four purchased. Defective items will be returned by buyer for repair and repair cost is g(X) = 3X²+X+2. What is the average cost of repair? Hint: Var X = EX² – (EX)²Consitution Student The New Nation: %5B"1MYvwUjsZUGDgRYh8-BRREGOZ852SK7KX"%- it 8 - REVIEW.pdf Saved iIndo 10 34. Find YZ. 2x +7 R 5x + 1 S T. 19An art supply store sells calligraphy pens at Sp per pen and calligraphy ink at $q per bottle. The price of one affects the price of the other, and the weekly demands, x and y, are each functions of p and q given by the given contour diagrams, where x = C(p.q) gives the quantity demanded of pens and y = 1(p.q) gives the quantity demanded of calligraphy ink. Complete parts a) and b) below. W Click the icon to view the contour diagrams. a) What does the graph of x= C(p,g) indicate about the values of dp At any value of p and q on the graph of,
- Just 2 please3- Find the equation of the regression line and find the y_ value for the specified x value. Calories and Cholesterol Calories and cholesterol are as follows: Calories X 390 535 720 300 430 500 440 Cholesterol y 43 45 80 50 55 52 60 Find y-hat when x = 600 calories. LO LOThese box plots show the number of dogs at two different dog parks at the beginning of each hour recorded over one week. Dog Park A Dog Park B +++ + 13 14 15 16 17 18 19 20 21 22 23 24 25 26 Number of Dogs Which statement is true based on this data? А. The range for dog park B is less than the range for dog park A. В. The highest value for dog park B is less than the highest value for dog park A. С. The median for dog park B is greater than the median for dog park A. D. The interquartile range for dog park B is less than the interquartile range for dog park A.
- Exam Saved Help Save & Exit Submit Suppose 42 percent of the customers at Pizza Palooza order a square pizza, 80 percent order a soft drink, and 32 percent order both a square pizza and a soft drink. Is ordering a soft drink independent of ordering a square pizza? O Yes O No erVisualize that two tributaries A and B at their confluence form a river C. Statistical properties of flow data for tributaries A and B indicate that tributary A has a yearly discharge rate smaller than its mean flow rate (?̅?) in 50% of the years while tributary B has a yearly discharge rate smaller than its mean flow rate (?̅?) in 60% of the time. In 70% of the years in which tributary A has a discharge rate smaller than its mean discharge rate (?̅?), tributary B also has a discharge rate smaller than its mean discharge rate (?̅?). Compute the probability that (i) both tributaries have a discharge rate smaller than their mean discharge rates, (ii) at least one tributary has a discharge rate smaller than its mean discharge rate, (iii) tributary A has a discharge rate smaller than its mean discharge rate given that tributary B has a discharge rate smaller than its mean discharge rate, (iv) at least one tributary has discharge rate higher than its mean discharge rate, and (v) probability…You are the foreman of the Bar-S cattle ranch in Colorado. A neighboring ranch has calves for sale, and you are going to buy some calves to add to the Bar-S herd. How much should a healthy calf weigh? Let x be the age of the calf (in weeks), and let y be the weight of the calf (in kilograms). 2 3 12 16 26 150 36 y | 45 48 70 100 200 A USE SALT Complete parts (a) through (e), given Ex = 95, Ey = 613, Ex² 2385, Σy2 %3D = 81,729, Exy = 13,774, and r - 0.9918. (a) Draw a scatter diagram displaying the data. 210 Graph Layers 200 190 After you add an object to the graph you 180 can use Graph Layers to view and edit its 170 properties. 160 Fill 150 140 130 120 110 100 No Solution 90 80 70 60 50 40 +30 O Help 20 25 30 35 10 15 40 WebAssign. Graphing Tool (b) Verify the given sums Ex, Ey, Ex², Ey², Exy, and the value of the sample correlation coefficient r. (Round your value for r to four decimal places.) Ex = Ey = Ex² = Ey? = Exy = (c) Find x, and y. Then find the equation of the least-squares…
- The amount of time adults spend watching television is closely monitored by firms because this helps to determine advertising pricing for commercials. Complete parts (a) through (d). (a) Do you think the variable "weekly time spent watching television" would be normally distributed? If not, what shape would you expect the variable to have? OA. The variable "weekly time spent watching television" is likely normally distributed. OB. The variable "weekly time spent watching television" is likely symmetric, but not normally distributed. OC. The variable "weekly time spent watching television" is likely uniform, not normally distributed. O D. The variable "weekly time spent watching television" is likely skewed left, not normally distributed. O E. The variable "weekly time spent watching television" is likely skewed right, not normally distributed. (b) According to a certain survey, adults spend 2.25 hours per day watching television on a weekday. Assume that the standard deviation for…Q2: State which of the following variables are: continuous, discrete, quantitative, qualitative, * quantitative qualitative نوعي The heights Restaurant's food and service rating The number of eggs Volume of water in a tank The number of correct guessesQ3) The table below show the number of hours(x) 20 students spent studying spansh in the montli before an examination and their percentage score(y). A) Determine SEE If you have the model. y =0.5x +49 B)Find the fit line ( Regrsion line) for these points. 40 15 27 19 10 22 22 44 25 Hours of study ( Exam marky) 32 90 26 66 21 13 80 36 62 50 74
