Whole world is curved

When asked if the test was going to be curved, my professor scoffed, and said "is the test curved pfft, whole world is curved!, statistics is curved!  Even light is curved,  pfft, yes yes the test is curved."

so it seems that the randomness we see as chance is really the bell curve - "normal distribution" and it looks like a bell curve.  One professor said the best way to describe it is ...if you have a wall ..and its filled with a bunch of pegs and you throw tennis balls at it no matter if you hit the sides or the middle ..or try to change it ..the damm balls will always land on the bottom in a pattern ..and that's a bell curve pattern (like the picture on the bottom) - so ...whole world is curved.  so if you play planko ..bet for the middle.

If you're going to learn anything in statistics learn this:

My ISDS statistics professor explained this one over and over but somehow it just didn't make sense until a tutor told me the following:

If you're going to learn anything in statistics learn this:

if  p-value < alpha         --> reject the null
that's the rule 100% of the time

The null is just that (NULL - NOTHING- NO CHANGE!)  H0:  MEAN = 0  <-- the null never changes! if there's a change ..then your answer is H1 = which is only saying that its not there's not enough evidence to be H0 (the null)

alpha is usually .05 (can be less tho)
p-value is a proportion!  (This is all assuming normal distribution)

repeat it over and over people ~_~; it can save you many headaches

• also in any F-test you don't care about the left side of the curve..because it starts at 0! that means if you get a negative answer ..you're doing it wrong!

Ask your questions or stop complaining.

Prof. Quote of the Day: (in thick Indian accent)
"...ohhh don't look at me with that look (hand gestures with arms waving wildly) like you don't know what I'm talking about ~ go on ask your questions ~ otherwise I get your student reviews with the "Oh no he doesn't explain things" Here is your opportunity! Use it! "

About half the class raised their hand - LOL - moral of the story: ASK, or don't complain. and Seize the Day!