Question

Select all that are true about the bell curve, standard deviation and the empirical rule.

1. 99.7% is 4 standard deviation from the mean
2.If I was going below the mean i would subtract the standard deviation
3. The emperor rule is used in bell curve ( idk if my teacher spelled this wrong but ya)
4. 95% is 2 standard deviations away from the mean
5. The middle of the bell curve is the mean.

I only know that the last one is true so plssss help!

Answer 1

2, 3, 4, and 5 are all true.

The only false choice is number 1. 99.7% of the values are within 3 standard deviations not 4.

The middle of the graph is the mean and you subtract if you are going below the mean.

Also, it is the Empirical Rule that is associated with the normal distribution.