You are conducting a long-term study and find a number of skulls on the landscap

Question

You are conducting a long-term study and find a number of skulls on the landscape that you are able to age. Specifically, you find 50 skulls, and after careful examination of tooth wear and other features, determine that 20 skulls are of individuals that died before their first birthday. An additional 10 skulls each are of animals that died at ages 1, 2 and 3. No skulls of older animals were found. Find specifics for ages 0,1,2, and 3: Age at death, Number of skulls, # in equivalent cohort, Survivorship Lx, Age-specific survival Sx, Age-specific mortality Qx

Explanation / Answer

No skulls of older animals were found

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