Recent content by jmm

Never mind; I just figured out that I need to use the standard deviation of the means to calculate the z scores instead of the population standard deviations. Thanks anyways!

Homework Statement A biologist interested in the mass of Chickadees (Poecile atricapillus) in North Glenmore Park collects the 3 samples shown below: Sample 1: 9 individuals with a mean mass of 13.23 grams Sample 2: 16 individuals with a mean mass of 9.64 grams Sample 3: 13 individuals...

Thanks again!

Thanks so much; that makes sense. This is for a quantitative biology class which is just a fancy name for stats 101 so we can definitely assume it's all independent. I've got some other questions while I'm at it: again I need to decide whether these would best modeled by binomial or Poisson...

Homework Statement I was given two problems and required to calculate some statistics/parameters for them. They are: 1) The Vancouver Island Marmot is one of Canada’s most endangered species; there are currently only 63 animals left on the Island. To maintain the population, geneticists...

Yeah that makes sense. Thanks for your help.

Oh so they're enantiomers? So you'd have (R)-1,2-epoxypropane and (S)-1,2-epoxypropane?

I have cyclopropanol and I guess the other two might be called 1,3-epoxypropane and 1,2-epoxypropane.

Yeah I do mean ethylene oxide. I noticed that the IUPAC name is oxirane. Is there a systematic way of naming these or is it just a compound with an arbitrary name? The last one's not really a big issue. It was for an assignment I had earlier but the structure of all 11 isomers was kind of...

I haven't read all of the replies so this has probably been covered by someone, but I wanted to briefly say your definitions of evolution and natural selection are kind of shaky. Evolution is not merely the passing on of genes, but a change in gene frequencies between generations. Natural...

Hey, How would I name (IUPAC) the isomer of C2H4O that is a triangular ring with C at two vertices and O at the third? Also, I'm trying to name the 11 isomers of C3H6O. So far I have 10 and I can't seem to get the last one. The ones I have are: propanal propan-2-one prop-2-en-1-ol...

I don't know that one either. I mean I probably do but I can't figure out where you're trying to lead me :) And I thought another linear algebra course would be good for me!

Oh, believe me, I've been looking it up for the past 8 hours haha. Everything I've seen has it defined in terms of combinations of many vectors.

Ummmm, I really don't know :(

Does it mean that all of the linear combinations of vectors in the span form the space Rn?