True or False? Consider the following table:    x P(X=x) 0 0.32 1 2 0.20 3 0.15 4 -0.05 If P(X=1) is assigned a value of 0.38, then the above distribution is a valid probability distribution.判断题

A

True

B

False

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You have 3 points of data with the values 1, 2 and 3. Which distribution is most likely?

Which of the following could not be probability distributions? ExampleA   ExampleB  Example C x     P(x)         x   P(x)     x     P(x) 0     .40          1   .10      50    .30 1 .    30          2    .15      60    .30                       3    .20      70     .40                       4    .15                        5    .05

Which of the following distributions are continuous distributions? Select all that apply.

Q5(a). (Continued) Does this distribution meet the first requirement? Yes Does this distribution meet the second requirement? Yes Note: For the second requirement, if you sum up rounded probabilities, the sum may not be exactly what you want to have. You may allow for a rounding error of 0.01 and be lenient with this question.

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