Question

http://prntscr.com/b1lesx what does this mean

Answer 1

@ganeshie8

Answer 2

wanna go on that other site? this one is literally lagging too much for me to help

Answer 3

sure.

Answer 4

well its a normal curve...

what you should know is that 68% of all data falls within 1 standard deviation above and below the mean...

you also need to know 95% of all data is within 2 standard deviations of the mean...

and 99.7% of all data is within 3 standard deviations of the mean.

so they are basic facts you need to know

so what else do you need..?

Answer 5

can you further explain. i am quite new to this. new words.

Answer 6

ok... so you know the mean is 1500 and standard deviation of 150

so between 1350 and 1650 you have 68% of the data

between 1200 and 1800 you have 95% of the data

and 1050 and 1950 you have 99.7% of all data

these percentages are set in stone for a normal distribution....

Answer 7

can you explain what a stardard dev. is

Answer 8

standard deviation is a statistic measure of spread....

so it measure the distance of a piece of data from the mean.

here is a link to some cliff notes ... look for statistical measures for a more formal definition of standard deviation.

It also has notes about the standard normal curve

Answer 9

http://www.cliffsnotes.com/study-guides/statistics

Answer 10

okay thanks c:

Answer 11

I was reading something the other day about luck . Apparently its is normally distributed about a large population. So you have lucky and unlucky people. I know which I am!

Answer 12

luck never made a person wise