Section 5.1
Three ways to answer this question: 1. Actually carry out an experiment2. Develop a probability model 3. Start with a model, and then use a
procedure to simulate repetitions ▪ We’ll use technology
The imitation of chance behavior based on a model that accurately reflects the experiment under consideration
1. State: Ask a question of interest about some chance process.
2. Plan: Describe how to use a chance device to imitate one repetition of the process. Tell what you will record at the end of each repetition.
3. Do: Perform many repetitions of the simulation.
4. Conclude: Use the results of your simulation to answer the question of interest.
First: Seed the calculator. TI-83/84 Instructions:
• Type in a number (I suggest birthday)
• Press STO> (above ON)
• Press MATH• Go to PRB• Select 1:rand
• Press ENTER twice• Your calculator is now
seeded
• Press MATH• Go to PRB• And down to 5:randInt(
• Press ENTER• Type the number range
(Ex. if you have 130 entries, type 1, 130)
• If you want the calculator to give you more than one entry at a time, type it last (5)
• Press ENTER• If you have a repeat,
press ENTER again• Select those entries as
your sample
The command randInt(0, 9, 5) generates 5 random digits between any two specified values.
The command randInt(1, 6, 7) could be used to simulate rolling a die 7 times.
HP Prime Instructions to seed:
• Press
• Highlight Statistics 2Var
• Press
• Press • Select Math > 5 Probability
> 4 Random > 4 Seed
• Press
• Type in number (I suggest birthday)
• Press • Your calculator is now
seeded
• Type in range (1, 130)
• Press however many times to get your sample.
• Press • Select Math > 5 Probability
> 4 Random > 2 Integer
• Press
If you have a repeated number, hit again.
Top Related