NATS 1880 Lecture Notes - Lecture 11: Homo Sapiens, Project Ozma, Encephalization
12 Apr 2016
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N = r* x fp x ne x fl x fi x fc x l. L refers to the lifetime over which these civilizations exist. Probability estimation: we use probability throughout our day (e. g. weather forecasts, example 1. Question: what percentage of students in nats 1880 were born in sept, oct, or. Nov? about 1/12 of students would have been born any given month of the year so 1/12 + 1/12 + 1/12 (or 3/12) (or 1/4 or 25%) of all students would be born in those months: example 2. The number of first years at york (about 12000) The fraction of fine arts students (10% = 1200) The fraction of which are female (60% = 720) The fraction which are red-headed (2% = 14) The fraction which are left-handed (10% = 1) 2. 5 million are males old enough to go to barber takes 1 barber 30 minutes for a haircut.
