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# Transcribed Image Text: 1. The total number of Corona cases in the US, keep in mind it is a running total. Courtesy of worldometers.info Date

Transcribed Image Text: 1. The total number of Corona cases in the US, keep in mind it is a running total.
Courtesy of worldometers.info
Date in 2020
Feb. 15
Feb. 26
Day (
Number of Corona Cases (C)
1
15
12
68
Mar. 8
23
541
Mar. 19
34
14,896
171,655
517,100
835,559
1,170,301
1,443,627
1,704,112
1,942,737
2,187,774
2,556,718
3,109,759
3,849,089
4,588,252
Mar. 30
45
Apr10.
Apг. 21
May 2
May 13
May 24
June 4
56
67
78
89
100
111
122
June 15
June 26
133
July 7
July 18
144
155
July 29
Aug. 9
166
177
5,228,738
5,771,205
6,239,373
Aug. 20
188
Aug. 31
Sept. 11
Sept. 22
199
210
6,673,451
221
7,109,730
a. Let C be the total number of Corona Virus cases in the United States by the end of
the t days since Feruary 14, 2020. (Let t = 0 represent Feb. 15, 2020.) Create a
scatter plot of the data. Take up the entire piece of graph paper. Make sure to label
the axes, and title your graph.
b. Does it look linear? Exponential, Quadratic?
c. Use the calculator to find the regression equation for this data. Express the equation
as a function, Cit) = a b.
Include screen shots of your data list entered, scatter plot on the calculator and the
regression equation screen
d. State a for both equations. What does it represent/mean in this context?
e. State b for both equations. What does it represent/mean in this context?
f. Estimate the total number of cases in the US by the end of the year, Dec. 31, 2020.
Remember t = O is February 14, 2020

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