Tuesday

October 21, 2014

October 21, 2014

Posted by **Math help** on Monday, February 25, 2008 at 8:26am.

- Statistics -
**drwls**, Monday, February 25, 2008 at 10:03am1. 68 is 2 sigma from the mean. 95% are within that distance of the mean, and 5% are outside it. Half of those (2.5%) are below it on the low side (below 68).

2. 50%. The mean always divides the distribution in that ratio: half above and half below.

**Answer this Question**

**Related Questions**

Statistics - Some IQ scores are standardized with a mean of 100 and a standard ...

Statistics - Some IQ scores are standardized with a mean of 100 and a standard ...

Statistics - Some IQ scores are standardized with a mean of 100 and a standard ...

Statistics - Some IQ scores are standardized with a mean of 100 and a standard ...

Math_Statistics - Some IQ scores are standardized with a mean of 100 and a ...

Statistics - Some IQ scores are standardized with a mean of 100 and a standard ...

stats - Some IQ tests are standardized to a Normal model with a mean of 100 and ...

Statistics - The distribution of IQ scores is a nonstandard normal distribution ...

Statistics - Hi! I've been stuck on this question for a while. I know that I ...

statistics - If a distribution of IQ test scores has a mean of 100 and a ...