| Page 1 of 1: 1 |
| NerdTuesday, March 6th 2007. | |
FAT2001Lakitu
Posts: 2,171 Join Date: Oct 2005 Location: 8===========> |
Will someone PLEASE explain this to me OK, I'm not trying to cheat or find any answers, I just can't find any sort of website that covers the following two topics:Abiotic/Biotic Factors Mean, Median, and Mode Standard Deviation With any search, all I find are lesson plans for teachers. Not even Wikipedia is helping out at all... I do understand Mean Median and Mode... through math. But this is science. Where the hell do I apply this here? Abiotic and Biotic factors are living and dead mass... right? I can't remember this crap, it was from like sixth grade... Damit all to hell! This class is Field Biology, btw. A college class, obviously showing me I have no place in college. Maybe things will change... You can be as blunt as you want, because I'm pretty sure I have learned this stuff somewhere before - just, I dunno, it's been a few years and it's not so fresh to me. Cookies WILL go around for contributions! Please, help a fat man out here. I might lose five pounds as a reward for you guys! |
 |
|
| NerdTuesday, March 6th 2007. | |
AipotubeN-Philes
Posts: 8,933 Join Date: Jun 2004 Location: Ottawa, Ontario |
in a nutshell, standard deviation is what tells you the likeliness you'll find results near the average mean. if your numbers are like 3 5 6 6 7 7 7 7 8 8 8 9, the standard deviation will be small because most numbes fall around 7. if your numbers are 1 2 3 4 5 6 6 7 8 9 10 10 11, the deviation will be larger because the the numbers are more evenly spaced out, and your chance at hitting a number near the average is lower. um abiotic factors of what? life? precipitation, sun, water, minerals present, stuff like that are abiotic factors of an environment. Predation, food source, vegetation, anything organic that affects conditions of an ecosystem, is a biotic factor. I guess, it's been a long time since I've see that too. I don't know what you're looking for. |
| |
|
| NerdTuesday, March 6th 2007. | |
FAT2001Lakitu
Posts: 2,171 Join Date: Oct 2005 Location: 8===========> |
I'm going to try and pin point this standard deviation with science... So, let's say, with your example, 3 5 6 6 7 7 7 7 8 8 8 9... this is the average lifespan of a racoon - around seven years. So... with your example and me trying to put field biology (my class) into it, the deviation would turn out to be the standard lifespan of a racoon, that would be around seven years. Sometimes eight, sometimes six... I know that's not the average life span of a racoon but I'm just trying to fit math with science here. And I guess it is life when it comes to abiotic factors. Man I need to go back to elementary school. Do they honestly think I'd remember that **** for so long? |
| |
|
| NerdTuesday, March 6th 2007. | |
AipotubeN-Philes
Posts: 8,933 Join Date: Jun 2004 Location: Ottawa, Ontario |
I think two standard deviations works out to be about 68% of results, meaning 66% of results lie between [average - standard deviation] and [average + standard deviation]. so if the average age of a racoon is 7 years, and the SD is 1.2 (random numbers I made up, not in real life or in my previous example), then 68% of racoons should die between the age of 5.8 and 8.2. Similarly, 95% will die within 4 deviations - (average - 2xSD) to (average + 2xSD). For our racoons, 4.6 years and 9.4 years. |
| |
|
| NerdTuesday, March 6th 2007. | |
bleeper2.0Livid
Posts: 6,522 Join Date: Aug 2005 Location: London |
I remember doing this stuff when i was about 16/17, i hated learning about the degrees of freedom stuff, standard deviation **** and i am not particularly good at it. But for the biotic factors aren't you just supposed to talk about things like predators, sources of food, disease etc etc for biotic factors and then for abioitic factors to talk about things like the environment such as sunlight, sources of shelter and weather for abiotic factors? |
| |
|
| NerdTuesday, March 6th 2007. | |
RudeBoy7Spiny
Posts: 137 Join Date: Nov 2006 Location: Houston, TX |
Abiotic factors are non-living physical and chemical factors which affect the ability of organisms to survive and reproduce. Biotic factors are living things or their materials that directly or indirectly affect an organism in its environment. Abiotic examples: light intensity, temperature range, type of soil or rock, pH level, water availability, dissolved gases, level of pollutants. Biotic examples: parasitism, disease, predation hope this helps ___________________ 
|
| |
|
| NerdWednesday, March 7th 2007. | |
StJimmyI'm in an Oasis
Posts: 3,144 Join Date: Sep 2003 |
It's good to know that I can leave for a year, and STILL retain my title as the smartest person on this entire board. Threads like this continue to add evidence and credibility to my title. ___________________  |
| |
|
| NerdWednesday, March 7th 2007. | |
AxeUnleashedBanned
Posts: 3,437 Join Date: Oct 2004 Location: Dearborn |
He's back! Who are you? ___________________  The Arabs are the best because they crossed the dessert. Ya, the Jews got lost |
| |
|
| NerdWednesday, March 7th 2007. | |
Pandas_UNITEPositive Panda
Posts: 18,424 Join Date: Oct 2002 Location: I live in your heart ;) |
you were gone for an entire year? edit: pff you were here back in october. thats like 5 months. ___________________ 
|
| |
|
| NerdWednesday, March 7th 2007. | |
BattousaiDamn 56k
Posts: 3,215 Join Date: Dec 2003 |
|
| |
|
| NerdWednesday, March 7th 2007. | |
StJimmyI'm in an Oasis
Posts: 3,144 Join Date: Sep 2003 |
Hhahaha, so yeah... I exaggerated a bit, but I really wanted this to be a huge comeback. Way to ruin all my dreams man. And Kyuwhatever, I'll answer your question once I figure out who YOU are. ___________________ |
| |
|
| NerdWednesday, March 7th 2007. | |
objectionobjection
Posts: 1,088 Join Date: Jun 2003 |
|
| |
|
| NerdWednesday, March 7th 2007. | |
StJimmyI'm in an Oasis
Posts: 3,144 Join Date: Sep 2003 |
Hey NightsB, I didn't really miss you  ___________________ |
| |
|
| NerdWednesday, March 7th 2007. | |
George[ˍ][□][x]
Posts: 12,711 Join Date: Jan 2003 Location: Florida |
Hey Stjimmy i was thinking about you just the other day when i was thinking of changing my name to StGeorge but then i was like meh st george is a cool dude and all killin them dragons and such but having St in a username would just be dumb so yeah i was thinking of you ___________________ testtest |
| |
|
| NerdWednesday, March 7th 2007. | |
StJimmyI'm in an Oasis
Posts: 3,144 Join Date: Sep 2003 |
|
| |
|
| NerdWednesday, March 7th 2007. | |
AxeUnleashedBanned
Posts: 3,437 Join Date: Oct 2004 Location: Dearborn |
|
| |
|
| NerdWednesday, March 7th 2007. | |
StJimmyI'm in an Oasis
Posts: 3,144 Join Date: Sep 2003 |
|
| |
|
| NerdThursday, March 8th 2007. | |
PlayMoreBanned
Posts: 587 Join Date: Jan 2007 Location: Merseyside, England |
You lost me when you started to talk about 'Abiotic' and 'Biotic Factors' ___________________ I think c-law123 is a NOOB  429567349600 - Mario Kart |
| |
|
| Page 1 of 1: 1 |