Question

Last year, members of a certain community health network included clinics in different regions, with an average (arithmetic mean) of clinics per region. Last year, the average number of health workers at these clinics who were network members was . Which of the following is closest to the total number of members of the network last year?
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Answer Choices

  • A.
  • B.
  • C.
  • D.
  • E.

Steps

ExplanationCalculationsHelp
We translate the counts into the multiplication of the number of regions, the average number of clinics per region, and the average number of health workers per clinic.
Because the answer choices differ by orders of magnitude (powers of 10), we use rough estimation to simplify the multiplication.
Theory & Tactics Method Card
CALC1-B
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We multiply the approximate values to get the estimated total number of members.
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Final Answer

C