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All right, today we will be continuing our discussion of probability distributions.
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And before we look at the distribution for today, to determine if it is a probability distribution or not, we're going to review the definition of probability distribution.
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And that is a table or an equation that links each outcome of a statistical experiment with its probability of occurrence.
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And we have to remember our two rules that go with probability distributions.
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Number one is that all probabilities and the probability distribution distribution must be between zero and one.
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And our second rule is that the sum of all probabilities must equal one.
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Now let's take a look at the probability, sorry, let's take a look at the distribution we have today and see if we can determine if it is or is not a probability distribution.
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So today is our event.
01:01
Over our probabilities, and our events are 5, 7, and 9.
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Our probabilities are 0 .6, 0 .8, and negative 0 .4...