A controversial 1992 Danish study9 reported that mensaverage sperm count has decreased
Chapter 1, Problem 54(choose chapter or problem)
A controversial 1992 Danish study9 reported that mensaverage sperm count has decreased from 113 million permilliliter in 1940 to 66 million per milliliter in 1990.(a) Express the average sperm count, S, as a linear functionof the number of years, t, since 1940.(b) A mans fertility is affected if his sperm count dropsbelow about 20 million per milliliter. If the linearmodel found in part (a) is accurate, in what year willthe average male sperm count fall below this level?
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