9-2 Probability!
Hey guys! So this section is all about probability.
Here are the terms and definitions:
Random Experiment: The act of doing something
Trial: Each time you do something
Simple Event/Outcome: What you get
Sample Space: All the possible outcomes
Probability of an Event: number of ways it can occur / number of possible outcomes
OR: P(E)=n(E)/n(S)
Now try it out:
You have 16 individual socks in a drawer and 9 of them are white and 7 of them are black. If you draw one at random, what is the probability that you will draw a white sock? What is the probability that you will draw a second white sock?
Since there are 16 total and 9 of them are white, you have a 9 in 16 chance of drawing a white sock, so you have a probability of 9/16.
Now there are only 15 socks in the drawer, 8 of which are white and 7 are black. You have a 8/15 chance of drawing a white sock this time.
For more information try:
http://www.k111.k12.il.us/king/math.htm#Probability
and
www.mathgoodies.com/lessons/vol6/intro_probability.html
Ellen you are next
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