When discussing data and models for the Covid-19 Pandemic, one useful quantity to consider is P(t), the cumulative total number of Covid-19 cases confirmed up to and including day t. Note that we can set t = 0 to correspond to any given date. Although we might think of t as being an integer (i.e "day 1" or "day 10"), for the purpose of graphing and modeling the data we can think of time as a continuous variable, in which case t = 0 might correspond to midnight on a particular date. The total number of Covid-19 cases in the US confirmed between March 7, 2020 and March 17, 2020 are shown in Table 1 below.¹ Date in 2020 March 7 March 8 March 9 March 10 March 11 March 12 March 13 March 14 March 15 March 16 March 17 P(t) 190 253 323 444 606 813 1086 1419 1850 2432 3214 Table 1: Total number of Covid-19 cases in US, 2020. March 7 corresponds to t = 0. Covid-19 outbreaks in many countries, at least over short periods of time, appeared to show an exponential increase in the number of cases. In this case, we would model the growth of P(t) with the differential equation P' (t) = kP(t) where k is a constant. In this assignment, you are asked to investigate whether an exponential growth model is appropriate model for the data given. 1. First, graph the data using your favorite graphing tool and describe what you see. Does it look like exponential growth? Why or why not? (If you don't already have a favorite graphing tool, I recommend Desmos.)
When discussing data and models for the Covid-19 Pandemic, one useful quantity to consider is P(t), the cumulative total number of Covid-19 cases confirmed up to and including day t. Note that we can set t = 0 to correspond to any given date. Although we might think of t as being an integer (i.e "day 1" or "day 10"), for the purpose of graphing and modeling the data we can think of time as a continuous variable, in which case t = 0 might correspond to midnight on a particular date. The total number of Covid-19 cases in the US confirmed between March 7, 2020 and March 17, 2020 are shown in Table 1 below.¹ Date in 2020 March 7 March 8 March 9 March 10 March 11 March 12 March 13 March 14 March 15 March 16 March 17 P(t) 190 253 323 444 606 813 1086 1419 1850 2432 3214 Table 1: Total number of Covid-19 cases in US, 2020. March 7 corresponds to t = 0. Covid-19 outbreaks in many countries, at least over short periods of time, appeared to show an exponential increase in the number of cases. In this case, we would model the growth of P(t) with the differential equation P' (t) = kP(t) where k is a constant. In this assignment, you are asked to investigate whether an exponential growth model is appropriate model for the data given. 1. First, graph the data using your favorite graphing tool and describe what you see. Does it look like exponential growth? Why or why not? (If you don't already have a favorite graphing tool, I recommend Desmos.)
Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter7: Distance And Approximation
Section7.3: Least Squares Approximation
Problem 31EQ
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