Allie B.
asked • 06/26/20I need the answer to this plz
Data for coronavirus from Spain is shown below.
Number of days Total infected
0 1
10 2
20 2
30 83
40 2140
45 9191
47 13716
75 ?
? 20,000,000
1) what is the function of this table?
2)what are the total infections by day 75?
3)what are the total days when 20,000,000 is infected?
More
1 Expert Answer
Patrick B. answered • 06/26/20
Tutor
4.7
(31)
Math and computer tutor/teacher
Well, it is NOT a line...
It is an EXPONENTIAL regression problem, and a good one at that...
the r-coefficient is 0.958103444
the function is y = f(x) = 0.221626774 * 1.248892133^x
At x=75 days, 3,845,847 shall be infected
0.221626774 * 1.248892133^x = 20000000
x is about 83 days
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William W.
Allie, does your class typically use a TI-84 calculator to determine the least squares regression line of best fit?06/26/20