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Probability & Statistics/Expert Profile
Expertise
general questions on probability and statistics. please do not send intro prob/stat homework questions.
Experience in the area
have taught probability and stats for 25 years
Education/Credentials
ba in math, phd in stats
Past/Present Clients
federal government, state AG, start-up pharma companies, engineering consulting firms, academic researchers (the list goes on).
Something interesting about this subject that others may not know:
altho it may not seem so to the many unfortunates suffering thru the intro courses each year, stats is REALLY useful if you have data to analyze. as for probability - just for starters - there would be no CAT scans without it. (no quantum theory either)
Average Ratings
Recent Reviews from Users
K = Knowledgeability C = Clarity of Response P = Politeness| User | Date | K | C | P | Comments |
|---|---|---|---|---|---|
| Wing | 03/30/12 | 10 | 10 | 10 | Hi, Ronny - I'm sorry to hear ..... |
| Ros | 03/29/12 | 1 | 1 | 1 | Thanks for acknowledging my question. I will ..... |
| Adrian | 03/08/12 | 10 | 10 | 10 | Dear Ronny: I would like to think ..... |
| Kenneth | 02/16/12 | 10 | 10 | 10 | Thanks for the reply and answer! |
| Michael | 02/05/12 | 10 | 10 | 10 | Good answer! |
Recent Answers from ronny fisher
2012-03-04 Statistical Computations:
adrian - i need to know where to start with a reply. do you have complete information about all of the providers in the two populations - or perhaps just samples of providers from them? also
2012-02-23 permutation and combination:
obaidullah - your feeling that permutations are required here is basically correct. your teacher is also correct, in that one could solve the problem by starting with combinations as well - but
2012-01-26 sample size:
tetsu - there is no magic sample size that works for all situations. what constitutes an adequate sample size depends on the kind of data to be analyzed and the assumptions made about the probabilistic
2011-12-21 What method(s) do you suggests? or such method available?:
tahsin - it seems to me your investigation involves an experiment with [multivariate] 4x10 responses. each panelist's "response" has the form of a 4x10 2-factor design, the factors being cakes and
2011-12-20 Two questions and a "Thank you":
wing - first off - thank you for the blessing. now - as regarding your first question: your situation is similar [in the abstract] to that of a clinic administering TB tests. sometimes the test
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