) Johns Hopkins reports two numbers daily for all the US states: P(t): the total number of cases confirmed on day t  or before  N(t): number of new cases reported on day t    a.)  What is P(t+1)-P(t) in terms of N?

Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter2: Systems Of Linear Equations
Section2.4: Applications
Problem 1EQ: 1. Suppose that, in Example 2.27, 400 units of food A, 600 units of B, and 600 units of C are placed...
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3.) Johns Hopkins reports two numbers daily for all the US states:

P(t): the total number of cases confirmed on day t  or before 

N(t): number of new cases reported on day t 

 

a.)  What is P(t+1)-P(t) in terms of N?

b.) Compare (P(t+1))-(P(t))/1 with (P(t-Δ))-(P(t))/Δt

What is the value of Δt and explain why P ≈ N in words. 

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