The graph in Exercise 61 shows the wind speed y (in mph) of a hurricane versus the barometric pressure x (in mb). The table gives a partial list of data from the graph. (See Example 8) a. Use the data in the table to find the least-squares regression line. Round the slope to 2 decimal places and the y -intercept to the nearest whole unit. b. Use a graphing utility to graph the regression line and the observed data. c. Use the model in part (a) to approximate the wind speed of a hurricane with a barometric pressure of 900 mb. d. By how much do the results of part (c) differ from the result of Exercise 61(c)?
The graph in Exercise 61 shows the wind speed y (in mph) of a hurricane versus the barometric pressure x (in mb). The table gives a partial list of data from the graph. (See Example 8) a. Use the data in the table to find the least-squares regression line. Round the slope to 2 decimal places and the y -intercept to the nearest whole unit. b. Use a graphing utility to graph the regression line and the observed data. c. Use the model in part (a) to approximate the wind speed of a hurricane with a barometric pressure of 900 mb. d. By how much do the results of part (c) differ from the result of Exercise 61(c)?
The graph in Exercise 61 shows the wind speed
y
(in mph) of a hurricane versus the barometric pressure
x
(in mb). The table gives a partial list of data from the graph. (See Example 8)
a. Use the data in the table to find the least-squares regression line. Round the slope to 2 decimal places and the y-intercept to the nearest whole unit.
b. Use a graphing utility to graph the regression line and the observed data.
c. Use the model in part (a) to approximate the wind speed of a hurricane with a barometric pressure of 900 mb.
d. By how much do the results of part (c) differ from the result of Exercise 61(c)?
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