Recent content by 15123

25th quartile? Don't you mean quantile? However, thanks for the explanation. Someone mentioned this to me, but I think he is incorrect:

I probably didn't understand him. I think he simply meant cuts=intervals-1.

There is still a fourth quartile. If a score on a test is 22%, I put it in the first quartile, if the score is 33%, I put it under the Median and if the score is 70%, I put it under the third quartile. What do you do with a value that is 95%? You should put it in the fourth quartile, so to me...

My professor stated the following: "Dividing in pieces is called 'quantiles'. In almost all cases quartiles are used, where n=4. We divide it into four equal pieces and we are going to check where the margin values are. Pay close attention: if I split my data into 4 equal pieces, I will have...

There had been a case in the UK where a woman's two babies died one after the other. Then some apparent statistician concluded 'If the chance of that occurring is 1 in a million, then she must have killed her babies'. Later, a very long court of law had been doing research on it and she appeared...

It is a statistics question. I followed the example of the 'swan experiment'.

Whyis it easier to disprove something than to prove something? Why can you have more certainty of something being untrue? Why is it hard to say something is true if the experiment's result yields it being true? Why is it a 'big maybe'?

Hello I am having a hard time understanding which factors should be taken into account and which ones should not be taken into account when calculating probability. I have the following situation: Last night I played FIFA12 on xbox live against an unknown opponent. He challenged me to a...

Let us suppose that the bullet is aimed 100% exactly straight up (through some device perhaps) and that the bullet is a standard 9 mm bullet with a symmetric body (like all bullets). Let us also suppose that this happens on a day where there is no wind resistance at all. Other factors: -...

A friend of mine asked me this question out of curiosity: If you shoot a bullet straight up into the air, how far would the bullet land from the point it went up? Possible factors: - Earth's rotation - air resistance What is the answer?

I mean that the existence of gravity is not dependent on it being a force that pushes or pulls. It does both.

I would like to know if the following statements are true: Gravity is a force that exists regardless of pull or push. It is actually a force that depends on two masses and the distance between those two masses. Imagine the following scenario: You are being shot into a traveling capsule in...