User talk:Burnschris185

Probability in numbers
In the real world events cannot be pradicted with total certainty. The best we can do is to say how likely they are to happen.

'Examle 1:

 an experement with a coin:'


 * Toss a coin 100 times, how many heads will come up?


 * Probability says that heads have a 1/2 chance, so we would expect 50 heads.


 * But when you actually try it out you might get 48 heads, or 55 heads...or anything realy, but in most cases it will be a number near 50.

Example 2: 5 marbels in a bag:''

'' So the probability = 4/5 =0.5
 * 4 are blue and 1 is red.
 * Probability that blue marble will be picked?
 * number of ways it can happen: 4(there are 4 blues)
 * Total number of outcomes:5(there sre 5 marbels