The table shows the wind speed y (in mph) of a hurricane versus the barometric pressure x (in mb). Barometric Wind Pressure (mb) (x) Speed (mph) (y) 1010 35 1000 40 1000 52 997 64 983 80 970 100 952 112 932 148 910 168 (a) Use the data in the table to find the least-squares regression line. Round the slope to two 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, then choose the correct graph from the options below. (c) Use the model in part (a) to approximate the wind speed of a hurricane with barometric pressure of 950 mb. Round to the nearest mph.
The table shows the wind speed y (in mph) of a hurricane versus the barometric pressure x (in mb). Barometric Wind Pressure (mb) (x) Speed (mph) (y) 1010 35 1000 40 1000 52 997 64 983 80 970 100 952 112 932 148 910 168 (a) Use the data in the table to find the least-squares regression line. Round the slope to two 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, then choose the correct graph from the options below. (c) Use the model in part (a) to approximate the wind speed of a hurricane with barometric pressure of 950 mb. Round to the nearest mph.
Chapter3: Polynomial Functions
Section: Chapter Questions
Problem 18T
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Transcribed Image Text:The table shows the wind speed y (in mph) of a hurricane versus the barometric pressure x (in mb).
Barometric
Wind
Pressure (mb) (x) Speed (mph) (y)
1010
35
1000
40
1000
52
997
64
983
80
970
100
952
112
932
148
910
168
(a) Use the data in the table to find the least-squares regression line. Round the slope to two 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, then choose the correct graph from the options below.
(c) Use the model in part (a) to approximate the wind speed of a hurricane with barometric pressure of 950 mb. Round to the nearest mph.
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