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True or False. Justify answer: 1. the normal distribution curve is always symmetric to 0. Hint: what is the mean? 2. If the variance from

True or False. Justify answer:

1. the normal distribution curve is always symmetric to 0. Hint: what is the mean?

2. If the variance from a data set is zero, then all the observations in this data set are identical. Hint: What does complement mean?

3. P(AOR A complement) = 1, where A complement is the complement of A. Hint: What does complement mean?

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