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Descriptive Statistics
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Probability Fundamentals
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Probability Distributions
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Central Limit Theorem
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Hypothesis Testing
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P Values And Significance
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Time Series Statistics
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easy
Time Series Statistics
A time series is described as "weakly stationary." Which two conditions must hold?
A
Mean is constant over time; variance grows linearly over time
B
Mean is constant over time; autocovariance depends only on lag, not on absolute time
C
The series has no trend and no seasonality
D
The series follows a normal distribution at every time point
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