MAA L ASSOCIATION OF AMERICA StatChapter03 Part 2: Problem 11 1 pone Acolege mat

Question

MAA L ASSOCIATION OF AMERICA StatChapter03 Part 2: Problem 11 1 pone Acolege matens course meets two pertonms this count ouring the fesil hal of clss a) On a particula day what is the probablity Thui the itructor pertoens the count ouring the second hat week, assume the counting time chosen on the second day of the week is independnt oft b) During a paiclar uning te fst ht of class on bom days of that weer not convert to percent c) Duing a paricular week assume the counting tme chosen on the second day of the week s not convert so pencene can eare parta have unmted

Explanation / Answer

Problem 7
1)
P(no injuries or fatalities) = 128/212
= 0.6037735
2) P(device) = 92/212
3)
P(no device| no injuries)
= P(no device and no injuries)/P(no injuries)
= 69/128
4)
P(no device or no injury)
= (120 + 128 - 69)/212 = 179/212
5)
P(at least one and device) = 11/212

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