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by IcsTam
February 18th, 2019, 8:21 pm
Forum: 2019 Invitationals
Topic: Science Olympiad at Penn Invitational 2019
Replies: 144
Views: 19677

Re: Science Olympiad at Penn Invitational 2019

In my opinion, Science Olympiad is less about learning about Epidemiology, or Acoustics, or whatever your event is, and more about learning scientific thinking and preparing yourself for a life where you use science. Taking a long test may make it harder to get through all the material on the test, ...
by IcsTam
February 17th, 2019, 6:19 pm
Forum: 2019 Invitationals
Topic: Science Olympiad at Penn Invitational 2019
Replies: 144
Views: 19677

Re: Science Olympiad at Penn Invitational 2019

In the same vein as the others, I’m the ES for Sounds. Would love to hear feedback — feel free to PM me!
by IcsTam
April 26th, 2018, 1:29 pm
Forum: 2018 Question Marathons
Topic: Disease Detectives B/C
Replies: 246
Views: 27028

Re: Disease Detectives B/C

Given a 2x2 table, how would you calculate the standard deviation? (qualitative explanation, although if using numbers as an example would help you, then feel free to) Standard deviation of what? A 2x2 table measures categorical data. (If you mean the sampling distribution of proportions, you can c...
by IcsTam
April 25th, 2018, 8:25 pm
Forum: 2018 Question Marathons
Topic: Disease Detectives B/C
Replies: 246
Views: 27028

Re: Disease Detectives B/C

Given a 2x2 table, how would you calculate the standard deviation? (qualitative explanation, although if using numbers as an example would help you, then feel free to)
by IcsTam
April 25th, 2018, 7:05 am
Forum: 2018 Question Marathons
Topic: Disease Detectives B/C
Replies: 246
Views: 27028

Re: Disease Detectives B/C

Explain the difference between retrospective cohort and case control studies. Can cohort studies be prospective? Can case control studies be prospective? Cohort studies can be prospective Case-control cannot be prospective. They can only be retrospective. Also, the difference between them is that r...
by IcsTam
April 24th, 2018, 2:06 pm
Forum: 2018 Question Marathons
Topic: Disease Detectives B/C
Replies: 246
Views: 27028

Re: Disease Detectives B/C

Name a bacterial agent which has an incubation period of 5 hours to 5 days that has historical significance in the field of epidemiology.
Vibrio cholerae
Yup!
by IcsTam
April 24th, 2018, 1:07 pm
Forum: 2018 Question Marathons
Topic: Disease Detectives B/C
Replies: 246
Views: 27028

Re: Disease Detectives B/C

Name a bacterial agent which has an incubation period of 5 hours to 5 days that has historical significance in the field of epidemiology.
by IcsTam
April 22nd, 2018, 3:14 pm
Forum: 2018 Question Marathons
Topic: Disease Detectives B/C
Replies: 246
Views: 27028

Re: Disease Detectives B/C

How many foodborne pathogens are known by the CDC?
31
by IcsTam
April 22nd, 2018, 12:15 pm
Forum: 2018 Question Marathons
Topic: Materials Science C
Replies: 27
Views: 2397

Re: Materials Science C

Explain the process of free-radical polymerization. Free-radicals are particles that have unpaired valence electrons. The process of free radical polymerization is like chain-growth polymerization: Free radicals append themselves to the end of the polymer chain. Next question. http://teamurbansiege...
by IcsTam
April 12th, 2018, 1:08 pm
Forum: 2018 Question Marathons
Topic: Materials Science C
Replies: 27
Views: 2397

Re: Materials Science C

Explain the process of free-radical polymerization.

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