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At an archaeological site that was an ancient swamp, the bones from 20 brontosaurus skeletons have been unearthed. The bones do not show any sign of diseases or malformation
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At an archaeological site that was an ancient swamp, the bones from 20 brontosaurus skeletons have been unearthed. The bones do not show any sign of diseases or malformation

User Coolhand
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p(x-4)=(10/20) (9/19) (8/19) (7/17) = 5040/116280= 0.043
User Bylijinnan
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