Question: Consider a normal distribution with mean 0. You've already seen that the equation of the normal curve is To avoid using e, you can use

Consider a normal with mean 0. You've already seen that the equation of the normal curve is

To avoid using e, you can use another equation that approximates the normal curve:

Use your graphing calculator or geometry software to explore how the graphs of these two equations compare for different values of Ïƒ. For which values of Ïƒ is the second equation a good approximation, a poor approximation, or even undefined?

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