+ Automatic Zoom Weight (tons) 70 60 50 40 30 ROSA200 16, 17, 10 20 40 60 80 100 Length (feet) X4 Which statement accurately describes the information in the scatter plot? A. The information shows a positive correlation. The weight of a dinosaur tends to increase according to its length. B. The information shows a negative correlation. The weight of a dinosaur tends to decrease according to its length. C. The information shows no correlation. The weight and length vary according to the type of dinosaur. D. The information shows no correlation. The relationship between the weight and length of a dinosaur is uncertain. Book Page 182-183

One of the biggest factors in determining the value of a home is the square footage. The accompanying data represent the square footage and selling price (in thousands of dollars) for a random sample of homes for sale in a certain region. Complete parts (a) through (h) below. Question Help v E Click the icon to view the housing data. (f) Interpret the slope. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. O A. For every additional thousand dollars in selling price, the square footage increases by square feet, on average. (Round to three decimal places as needed.) O B. For every additional square foot, the selling price increases by (Round to three decimal places as needed.) thousand dollars, on average O C. For a house that is sold for $0, the predicted square footage is (Round to three decimal places as needed.) O D. For a house that is 0 square feet, the predicted selling price is thousand dollars. (Round to three decimal places as…

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.

Estimate the slope of the line. y 10 9 8 7 6 5 4 3 2 1 1 72 3 4 5 6 7 8 9 10