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Lesson 2: Probability models

Probability models example: frozen yogurt

Model the probability of a frozen yogurt line having 0, 1, or 2 people in it.

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• What is theoretical probability again?
• Definition of Theoretical Probability. It is the likeliness of an event happening based on all the possible outcomes. The ratio for the probability of an event 'P' occurring is P (event) = number of favorable outcomes divided by number of possible outcomes.
• So if the line number increases, does it mean that the probability goes down too?
• yes, if you observe more people coming into the store then the probability of there being no people in line is lower
• If you are riding on your boat and it crashes into your book on the sun, what is the probability of learning the art of desk making in the speed of a train?
• i dont understand how you turn 24/50 into 0.48
• what you can do is turn 24/50 into 48/100, which then gives you a percent, or .48 in decimal form.
• How do you use probability to estimate in word problems or like use it when you have a spinner model?
• Would it be correct to say that probability is an estimate or a calculated estimate and not exactly the precise answer?
(1 vote)
• Yes. He says at that "It's very hard to know for sure what the true probability is, but you can make estimates."
• At ,how you get 24/50?
• total 24 + 18 + 8 = 50 times obversed = 100% (include 0, 1, 2 line size)
line size 0 have 24 times oberved = 24/50 = 48%
• i think it's easier just to multiply 0.16 by 500 to get the decimel
(1 vote)
• How do you see that as easier? Multiplying times a single digit times 10 is much simpler than multiplying a double digit number times 5 and having to deal with the decimal? As a number sense coach, your approach is not easier.
(1 vote)
• what is experimental probability