Wednesday, October 28, 2009

rolling dice lab

The following is instruction for the dice lab that we started on Thursday.
Rolling dice – craps, gambling, set up so house wins
With 2 (6 sided) dice, what is the chance of rolling a 2,3,4,5,6,7,8,9,10,11,or 12
1. Observations – describe the dice, is there an equal chance of landing on any side? Make at least 10 observations.
2. Hypothesis – pick a number between 1 and 13 and using logic, make a prediction about what percentage of the time you will get a sum of that number when you roll your two dice. How many ways can you role your sum. Now you should be able to make a prediction about how many times your # will come up if you roll the dice 100 times.
3. Experiment – design an experimental plan, write your plans in numbered steps. How will you record your results? Execute the experiment (do the experiment) Record your results and any relevant observations.
4. Analysis – what does your data mean? Explain any calculations you make.
5. Conclusions – What was the measured percentage that you actually came up with? Is this different than your hypothesis? Is it close to your hypothesis or not? Based on the results, do you accept or reject your hyothesis?
6. Repeat – could anything be gained by repeating the experiment? Would you do anything differently? Are there any modifications or related experiments that you can think of that would be interesting?
7. Report – write a lab report. This should contain 6 sections corresponding to each of the above parts of the scientific method. Each section should be in paragraph format with complete sentences. The one exception to this rule is the experimental section which can have the steps listed in order.

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