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Worksheet #1
This sheet will be your reference sheet from now on.
Keep it in your Mathematics notebook at all times. It will be a great study
guide for you whenever a quiz, test or homework question is assigned.
When calculating probabilistic outcomes on equally likely
events, the following steps should be followed:
1. Ask yourself: "What are all the possible outcomes"?
What this really means is that you need to analyze what your sample space
consists of. An example of this is to look at a dime. There are only 2 possible
events when it is flipped-either a head or a tail. Thus, the total number
of outcomes with a dime is 2. First is to set up some kind of table system
to help you keep track of all the possible events.
Total Possible Outcomes = ____________________
2. Now we know how many total possible outcomes can occur. Next, lets look at finding the probability of certain events. Probability is a number between 0 and 1 that describes the likelihood that an event will occur. Because it is between 0 and 1, we know that this will be a ratio:
In essence, what you are finding is the theoretical probability
of an event or a value arrived at analyzing all possible outcomes and assigning
probabilities based on that outcome.
In our problem we need to find out the "chances"
or the probability of getting hit by the black chip. We either can move
the chip 4 times, 3 times, 7 times or none at all.
On the following page you are required to show all the
work that is being in class. Write small so that you can fit all that is
necessary.
Note: When dealing with probabilities it is sometimes helpful to deal with percents as well. Here's a quick review of the formula to convert fraction to percents:
| percent % | part (is) | |
| 100 | whole (of) |
2a. To find the chance of
getting hit on Moving 7:
Fraction= __________ Percentage=_______________
2b. To find the chance of
getting hit on Moving 3:
Fraction= ________ Percentage=_________________
2c. To find the chance of
getting hit on Moving 4:
Fraction= __________ Percentage= _________________
2d. To find the chance of getting hit when not moving:
Fraction =__________ Percentage= __________________
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