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If using direct marketing as a tool to send personalised messages to a highly targeted audience, the best approach is to use:
Normal Curve
A symmetrical bell-shaped graph that represents the distribution of data in which most values cluster around a mean value.
Standard Normal Probability Distribution
A normal distribution with a mean of zero and a standard deviation of one.
Probability Density Function
A function that describes the relative likelihood for a random variable to take on a given value.
Continuous Random Variable
A type of random variable that can take an infinite number of possible values, often representing measurements on a continuous scale.
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