The table below shows the number, in thousands, of vehicles parked in the central business district of a certain city on a typical Friday as a function of the hour of the day. Vehicles parked (thousands) 6.1 74 7.5 6.6 3.9 Hour of the day 9 A.M. 11 AM 1 P.M. 3 P.M. 5. P.M. (a) Use regression to find a quadratic model for the data. (Let V be the number of vehicles and t be the time in hours since midnight. Round the regression parameters to three decimal places.) V= (b) Express using functional notation the number of vehicles parked on a typical Friday at 4 PM, and then estimate that value. (Round your answer to two decimal places.) (5 x)-7.23 X thousand (c) At what time of day is the number of vehicles parked at its greatest? O 10:12 PM. O 2:26 PM. O 12:26 AM O 10:04 AM 12:12 PM.
The table below shows the number, in thousands, of vehicles parked in the central business district of a certain city on a typical Friday as a function of the hour of the day. Vehicles parked (thousands) 6.1 74 7.5 6.6 3.9 Hour of the day 9 A.M. 11 AM 1 P.M. 3 P.M. 5. P.M. (a) Use regression to find a quadratic model for the data. (Let V be the number of vehicles and t be the time in hours since midnight. Round the regression parameters to three decimal places.) V= (b) Express using functional notation the number of vehicles parked on a typical Friday at 4 PM, and then estimate that value. (Round your answer to two decimal places.) (5 x)-7.23 X thousand (c) At what time of day is the number of vehicles parked at its greatest? O 10:12 PM. O 2:26 PM. O 12:26 AM O 10:04 AM 12:12 PM.
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Transcribed Image Text:The table below shows the number, in thousands, of vehicles parked in the central business district of a certain city on a typical Friday as a function of the hour of the day.
Vehicles parked
(thousands)
6.1
74
Hour of the day
9 A.M.
11 AM.
1 P.M.
3 P.M.
5 P.M.
V=
7.5
6.6
3.9
(a) Use regression to find a quadratic model for the data. (Let V be the number of vehicles and t be the time in hours since midnight. Round the regression
parameters to three decimal places.)
X
(b) Express using functional notation the number of vehicles parked on a typical Friday at 4 PM, and then estimate that value. (Round your answer to two decimal
places.)
(5
X thousand
(c) At what time of day is the number of vehicles parked at its greatest?
O 10:12 PM.
O 2:26 PM.
O 12:26 AM
O 10:04 AM
12:12 PM.
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