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Problem

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Textbook Expert
Textbook ExpertVerified Tutor
29 Dec 2021

Given information

The given graph is 

Step-by-step explanation

Step 1.
The meaning of these derivatives are:
  represents the [total fertility rate]
  represents the rate of change the [total fertility rate]
  means that the [total fertility rate] in 1950 was increasing at the rate of year
  means that the [total fertility rate] in 1965 was increasing at the rate of  year
  means that the [total fertility rate] in 1987 was increasing at the rate of year
 

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