The Z Score for the Standard Normal Distribution

question 105

Multiple Choice

The z score for the standard normal distribution

• A) is always equal to zero.
• B) can never be negative.
• C) can be either negative or positive.
• D) is always equal to the mean.

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Definitions:

Seasonality

The occurrence of variations that are predictable and repeat over a specific period within a year, often seen in industries like retail and agriculture.

Forecast

Predictions about future events or trends based on historical data analysis or current observations.

Seasonal Multiplicative Model

A time series forecasting method that accounts for multiplicative seasonal variations in the data.

Holt-Winters Additive Model

A forecasting technique that extends exponential smoothing to capture seasonality and trend in time series data.