Statistics students in Oxnard College sampled 10 textbooks in the Condor bookstore and recorded the number of pages in each textbook and its cost. The data are shown below: Number of Pages (xx) Cost(yy) 462 73.82 930 121.3 231 47.41 623 91.53 771 103.81 492 69.12 609 86.99 700 95 220 34.2 355 66.05 A student calculates a linear model using technology (Statistics Calculator or Computer) ˆyy^ =  xx + . (Please show your answers to two decimal places) Use the model to estimate the cost when number of pages is 553. Cost = $ (Use the linear model with yor rounded coefficients and then

If data set has a relationtionship that is best described by a linear model, then the residual plot will

Can a low barometer reading be used to predict maximum wind speed of an approaching tropical cyclone? For a random sample of tropical cyclones, let x be the lowest pressure (in millibars) as a cyclone approaches, and let y be the maximum wind speed (in miles per hour) of the cyclone. x 1004 975 992 935 989 928 y 40 100 65 145 80 147   (a) Make a scatter diagram of the data and visualize the line you think best fits the data.   (b) Would you say the correlation is low, moderate, or strong? low moderate     strong   Would you say the correlation is positive or negative? positive negative       (c) Use a calculator to verify that          x = 5823,          x2 = 5,656,235,          y = 577,          y2 = 64,859  and          xy = 553,251   Compute r. (Round your answer to four decimal places.)     As x increases, does the value of r imply that y should tend to increase or decrease? Explain your answer. Given our value of r, y…

A recent experiment included measuring the weight of a package of raw almonds.  This type of data would be considered a: Discrete variable or Continuous variable?