## Question 291:

1## Answer:

No answer provided yet.These are the properties of the normal curve. Take a look at the interactive graph of the standard normal curve and you'll see what percent of area 1, 3 and 3.5 standard deviations encompases.

- 68%
- 99.7%
- 99.9%

You can also check these by entering 1, 3 and 3.5 in the z-score to percentile calculator.