The table below shows the data of the new type of virus disease (COVID-19) for last month in the Türkiye. i) Find a 2nd order polynomial equation (Ŷ = a0 + a1 x + a2 x2) that fits the number of cases against patients. ii) Then calculate the correlation coefficient. Using the parabola equation, find a regression curve for the number of patients recovering based on the number of cases. iii) Also, estimate how many years should it take for the number of cases to end

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The table below shows the data of the new type of virus disease (COVID-19) for last month in the Türkiye.

i) Find a 2nd order polynomial equation (Ŷ = a0 + a1 x + a2 x2) that fits the number of cases against patients.

ii) Then calculate the correlation coefficient. Using the parabola equation, find a regression curve for the number of patients recovering based on the number of cases.

iii) Also, estimate how many years should it take for the number of cases to end

DATE
DAILY CASE NUMBER
DAILY HEALING PATIENTS
21-December-20
3,412
34,419
22-December-20
3,309
32,110
23-December-20
3,192
34,492
24-December-20
3,218
33,985
25-December-20
3,199
35,511
26-December-20
3,002
23,231
27-December-20
2,806
21,196
28-December-20
2,816
22,203
29-December-20
2,783
21,004
30-December-20
2,612
20,192
31-December-20
2,219
22,021
1-January-21
1,908
14,110
2-January-21
3-January-21
1,713
11,672
1,515
10,102
4-January-21
1,508
9,896
5-January-21
1,477
8,908
6-January-21
1,458
8,702
7-January-21
1,370
8,211
8-January-21
1,291
9,894
9-January-21
1,103
7,902
10-January-21
1,017
8,103
11-January-21
1,003
10,301
12-January-21
983
10,013
13-January-21
971
9,463
14-January-21
958
9,011
15-January-21
921
9,109
16-January-21
902
8,005
17-January-21
803
8,812
18-January-21
749
7,905
19-January-21
761
7,218
20-January-21
752
5,932
21-January-21
743
6,113
Transcribed Image Text:DATE DAILY CASE NUMBER DAILY HEALING PATIENTS 21-December-20 3,412 34,419 22-December-20 3,309 32,110 23-December-20 3,192 34,492 24-December-20 3,218 33,985 25-December-20 3,199 35,511 26-December-20 3,002 23,231 27-December-20 2,806 21,196 28-December-20 2,816 22,203 29-December-20 2,783 21,004 30-December-20 2,612 20,192 31-December-20 2,219 22,021 1-January-21 1,908 14,110 2-January-21 3-January-21 1,713 11,672 1,515 10,102 4-January-21 1,508 9,896 5-January-21 1,477 8,908 6-January-21 1,458 8,702 7-January-21 1,370 8,211 8-January-21 1,291 9,894 9-January-21 1,103 7,902 10-January-21 1,017 8,103 11-January-21 1,003 10,301 12-January-21 983 10,013 13-January-21 971 9,463 14-January-21 958 9,011 15-January-21 921 9,109 16-January-21 902 8,005 17-January-21 803 8,812 18-January-21 749 7,905 19-January-21 761 7,218 20-January-21 752 5,932 21-January-21 743 6,113
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