Sunday, February 7, 2010

True experiments enable us to draw conclusions about causality. Relational (correlational) studies do not.?

I need help!!True experiments enable us to draw conclusions about causality. Relational (correlational) studies do not.?
yes.True experiments enable us to draw conclusions about causality. Relational (correlational) studies do not.?
Correlation does not equal causation. X and Y's relationship might be influenced by Z's (a third factor) relationship. Z is controlled in a true experiment that is why it allows us to draw a conclusion. Of course, making the case for a ';true experiment'; is an undertaking in itself. That is why there is such thing as peer review.
You are correct. Correlation does not equal causation. And yet it is a common rhetorical device to make it seem so. For example, many people cite studies that indicate everyone who ends up addicted to heroin started with the ';gateway'; drug of Marijuana. This makes it seem as though there is a causal relationship between the two, that using marijuana causes the use of heroin. However, it is merely correlative, not causal. What isn't being taken into account are the millions upon millions who have used marijuana and yet have never used ';harder'; drugs. And, if you want to illustrate the absurdity of the that kind of correlative argument, we can say that breast milk and baby formula out to be outlawed because everyone who uses heroin started out by using mother's milk or a baby formula.
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  • Is it true Americans force their uninsured to undergo deadly medical experiments?

    It's really sick and disturbing!Is it true Americans force their uninsured to undergo deadly medical experiments?
    Are you going to ask any rational questions at all today? Every one I've seen from you reads like a paranoids diary written under the influence of LSD. Or are you just trying to get famous by coming up with your own conspiracy theory?Is it true Americans force their uninsured to undergo deadly medical experiments?
    No, it is not true. The truth is many insured people force themselves to undergo deadly medical experiments via pills they get from the doctor for no good reason. Pill addiction is the new crack in the USA.
    No, they just don't get medical treatment, period. Nobody is forced to undergo experiments. Someone said they are legally able to get medical care, above. That's only true in an extreme, immediate emergency in an emergency room. If you have an illness, you are out of luck. They might sew up a wound in the ER even if you don't have insurance, but they'll quickly dump you outside, and then send a gigantic bill to consume the rest of your life. You won't be able to afford the follow-up treatment.





    I guess if someone was desperate enough, they might agreet to a medical trial just to get some type of medical care. I knew some kids in college who did. Scary. No telling what was done to their bodies.
    No.
    No! want even waste my time on this comment.
    No even worse, they go untreated at all.
    yeah that happens once your in your life is not yours it belongs to the goverment
    Actually, that one is true.





    Many HIV patients are forced to accept expirimental treatment in order to get proper medical attention.





    The pharmaceutical companies are able to pay for better care for their ';subjects'; than the welfare department.





    Unfortunately, there are many people that these expirimental medications do not work for and they are no longer the Government's problem...





    So even though there is no law that says someone has to accept the risky treatment, many people find themselves forced into it as a last resort.
    That's a new one...
    Not true at all. Anyone who has ';medical experiments'; preformed on them does it on a voluntary basis and is paid for it.


    This applies to testing of new medicines and new procedures/surgeries, etc...


    Where do you hear this crap from? No wonder people have such a distorted view of the US.
    Yes! How else are we supposed to develop new medicines for our pharmaceutical companies to push on an unwitting populace?
    Wow, just wow. Is this what the media says about us in other countries? Yeah, deadly experiments, just like our animals that are uninsured. Good grief people, wake up. I've been uninsured, and it stinks, but there were no deadly experiments. I just had to live with a broken collarbone and having all the ligaments in my knee torn. I still haven't had surgery on either, even though now I am insured. Get a grip.
    where are you getting this nonsense stuff from?





    first eatin babies, now this?
    Matt, actually they don't go untreated. It's illegal. You're as likely not to get treated for not having insurance in the US as you are if you forget your national ID card in canada or europe. in fact, 85% of US hosptials are nonprofits. You should really study up before you harbor so much hatred.


    And, Bob J, what meds are you on?--or not on?
    No, that doesn't happen on uninsured people who seek medical help. No one can do anything to anyone else if it's against their will in America. Sometimes doctors will test experimental drugs on people who have a disease like aids or cancer and don't have much more time to live. The person has to verbally agree and sign a waiver before the doctor just sticks the needle in them though. And it happens in many other nations around the world. I would guess that most nations that produce medicine test drugs on human beings before and of them go out on the market. Doctors are kind of forced to. Because you can't just test a drug out on any animal and expect it to work on a human. Testing on real people is why we're so close to finding the cure for aids. We're becoming closer to finding the cure to some types of cancer and many other deadly diseases as well. It's not in any way evil because the person has to agree to having the experimental drug inside of them.
    Deadly, no. But I did have a friend with an incurable disease and no insurance. He was able to obtain experimental treatment, free of charge. But, your use of the word ';deadly'; is very wrong. His treatment was voluntary and he agreed.





    No, the treatment was not successful and he died. Unfortunately, that is sometimes how knowledge is obtained and the intent of the treatment was to search for possible cures, not kill him.

    Isn't true that load of beam can effected the value of E in young modulus experiment?

    You have asked several questions about the Young Modulus.





    Rather than answers to them, you probably need a simple understanding of their basis.





    http://www.matter.org.uk/schools/Content鈥?/a>





    I recommend you review the above (it has links to its contents), and then browse google. e.g.


    http://www.google.com/search?client=oper鈥?/a>





    .

    TRUE or FALSE? An experiment consists of spinning a coin 3 times in succession and recording the outcomes,?

    Q1. An experiment consists of spinning a coin 3 times in succession and recording the outcomes, i.e. either heads (H)


    or tails (T). (For example, one possible outcome could be (tails, heads, heads), which we denote as (T,H,H).)





    A. The sample space S is the set {H,T} .





    B. Consider the event E1 “obtain at least two heads”. Then n (E1) = 4.





    C. If E2 is the event “obtain the same result on all three spins”, then P (E2) = 1/4.





    1. Only A


    2. Only B


    3. Only C


    4. Only A and B


    5. Only B and C





    Another one ....





    Q2. Which of the following statements is/are true?





    A. The probability that no spin results in T is greater than the probability that all three spins give the


    same result.





    B. The probability of not obtaining H is the same as the probability of obtaining only T.





    C. If the coin is spun one more time, i.e. if it is spun four times in succession, then there will be 16


    possible outcomes.





    1. Only A


    2. Only B


    3. Only C


    4. Only A and B


    5. Only B and CTRUE or FALSE? An experiment consists of spinning a coin 3 times in succession and recording the outcomes,?
    Q1 the sample space is all possible outcomes. In this case it is {TTT,TTH,THH,THT,HHH,HHT,HTT,HTH} A is false.





    Look at the sample space for part B. Notice that 4 outcomes contain at least two heads. B is true.








    Only 2 of the 8 elements of the sample space have the same result all 3 times. 2/8 = 1/4. C is true.








    This would make only B and C the correct choice.








    Q2.





    A. the probability that no spin results in T is 1/8. The probability that all three spins give the same result is 2/8 or 1/4. This is false





    B. not obtaining H would be TTT. This is the same as only obtaining T. True.





    C. There would be two more outcomes (H or T) for each of the 8 possible outcomes. 2 * 8 = 16. True.





    Once again, Only B and C is the correct choice.TRUE or FALSE? An experiment consists of spinning a coin 3 times in succession and recording the outcomes,?
    Q1:


    A is true, by the definition of a sample space. This reduces the possible answers to ';1. Only A'; or ';4. Only A and B';.


    B is true; the four answers are as follows:


    HTH, HHT, THH, HHH


    By process of elimination, this means that the answer must be ';4. Only A and B';





    Q2:


    A asks about the probablity of HHH vs the probability of TTT.


    Because the probability of H is equal to the probabitity of T, the probability of HHH is equal to the probability of TTT. This means that A is false.





    B asks about the probability of not getting H and the probability of getting only T. Not getting H means only getting T, because they are the only possible outcomes to the experiment. Therefore, they are equal and B is true.





    C is true; the outcomes are:


    TTTH TTHH HHHT TTTT


    TTHT THHT HHTH HHHH


    THTT HTTH HTHH HTHT


    HTTT THTH THHH HHTT





    B and C are true; the answer is 5

    That was true,we can go forward to time but i have make an experiment that we can go travel back to time?

    You should go forward ';to time'; to see if you learned how to write.That was true,we can go forward to time but i have make an experiment that we can go travel back to time?
    good luck

    Time and tide wait for no man.Is this true?I think not-----because I tried an experiment?

    I went to the beach and the tide was there,i waited for an hour and it was still there but when i got home i missed Coronation S t because time had not waited for meTime and tide wait for no man.Is this true?I think not-----because I tried an experiment?
    King Canute got his feet wet the same way!Time and tide wait for no man.Is this true?I think not-----because I tried an experiment?
    First grader ?
    Life goes on if you are there or not.


    Hence time %26amp; tide wait for no man.





    To put it another way: Man can't stop time or the tides in the seas.
    Thats really sad mising coronation street. I hope you are ok. Can you get a copy of the missed episode from a friend. Perhaps you could ask that question on this site and borrow it. I am sad for you. How annoying.
    ever thought of using a video tha corrie would have waited for you
    You should have set your video on TIMER and while time wouldn't actually wait for you, you'd have missed nothing!
    But the tide is always there.....what it means is it doesn't stop......say...at high tide...all day...anyway...Corrie..you could have videoed it...watched it later on freeview..or if you are one of these peeps with sky plus...set it to record it for you..to watch any time.


    If you'd sat at the low water mark.....you would have got quite wet within an hour.
    Time %26amp; tide wait for none. It is 100% true. Tide appears in the sea %26amp;disappers into sea, the oone you watched is not same tide. We have become too much time consious. Tea breakfast lunch dinner dance school time so %26amp; so on. What is time?
    and how do you know that the tide you saw was meant for you?
    In todays hyperreality time and space is compressed to the point where it is almost irrelevant. Coronation Street will be stored in digital form somewhere if you needed to watch it that badly. And as for tide, although on a beach it is true there are certain places with big water gates that control the tide. lol.
    try another experiment to prove it.
    it never does that's why you can't watch each and every episodes of the programmes you enjoy that's why there is point to get sad!!!!

    It is said that Emperor Trajan did an experiment that prevents babies from having affection. Is it true?

    No. There is no reason to believe he did any such thing. When you say it's ';said'; do you mean you read it somewhere? Or what?
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