High School

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On all normal curves, the area between the mean and ±1 standard deviation will be...

1) about 34

2) about 68

3) 50

4) 99.9

Answer :

Final answer:

The area between the mean and ± 1 standard deviation on a normal curve is approximately 68%.

Explanation:

The area between the mean and ± 1 standard deviation on a normal curve is approximately 68%. This is known as the Empirical Rule or the 68-95-99.7 rule. It applies to bell-shaped distributions that are normal and symmetric.

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