in 2000 there were 7.325 multiple births recorded in the U.S. In 2005, the number of multiple births dropped to 60694. What was the decay factor for multiple births for the 5-year period from 2000 to 2005? What was the percent decrease?
multiple births in 2000 = 73250
multiple births in 2005 = 60694
decay be d
multiple births in 2005 = 73250 *(1-d)5 =60694
= 60694/73250 =0.8286
1-d = 0.8286
d = 1-0.9631
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