Question: Why is a normal distribution referred as a bell curve? If the Mean, Median, and Mode are NOT the same, the distribution is referred to

Why is a normal distribution referred as a "bell curve?"

If the Mean, Median, and Mode are NOT the same, the distribution is referred to as what?

In a normal distribution, about 99% of all values all values fall within plus or minus how standard deviations from the mean?

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