The table below shows the number, in thousands, of vehicles parked in the central business district of a certain city on a typicalFriday as a function of the hour of the day.Vehicles parked(thousands)Hour of the day9 A.M11 A.M6.37.41 P.M7.53 P.M6.55 P.M.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 hourssince midnight. Round the regression parameters to three decimal places.)V =X(b) Express using functional notation the number of vehicles parked on a typical Friday at 2 P.M., and then estimate thatvalue. (Round your answer to two decimal places.)14X thousand(c) At what time of day is the number of vehicles parked at its greatest?12:26 A.MO 12:04 P.M.10:04 A.M.2:26 P.M.10:04 P.M.

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Asked Dec 4, 2019
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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)
Hour of the day
9 A.M
11 A.M
6.3
7.4
1 P.M
7.5
3 P.M
6.5
5 P.M.
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.)
V =
X
(b) Express using functional notation the number of vehicles parked on a typical Friday at 2 P.M., and then estimate that
value. (Round your answer to two decimal places.)
14
X thousand
(c) At what time of day is the number of vehicles parked at its greatest?
12:26 A.M
O 12:04 P.M.
10:04 A.M.
2:26 P.M.
10:04 P.M.
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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) Hour of the day 9 A.M 11 A.M 6.3 7.4 1 P.M 7.5 3 P.M 6.5 5 P.M. 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.) V = X (b) Express using functional notation the number of vehicles parked on a typical Friday at 2 P.M., and then estimate that value. (Round your answer to two decimal places.) 14 X thousand (c) At what time of day is the number of vehicles parked at its greatest? 12:26 A.M O 12:04 P.M. 10:04 A.M. 2:26 P.M. 10:04 P.M.

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Expert Answer

Step 1

(a) First of all, change the time format into 24 hours format. And create the table again.

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Hours of day Vehicles parked 6.3 7.4 11 7.5 13 6.5 15 3.9 17

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Step 2

Now, use Ti-83 calculator to find the function V(t). It represents relation between number of vehicles parked in thousands and time t in hours.

On the Ti-83 calculator and press the STAT, then press the ENTER to enter the lists screen. If there is data present in the tables of L1 or L2, erase the data using press CLEAR and then ENTER and move the cursor onto L1. Repeat for L2.

Step 3

Enter “Hours of the day” data, one by one into the L1 column. Press the ENTER key to go to the next entry.

By the use of arrow keys scroll across the tables i.e. L2...

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