1. what is the importance of standard deviation in regards to the mean?
The mean value tells us where the center is. The standard deviation gives us a clue about how broad or narrow the bell curve is. These two tell us about the field of values, and help us to know how the measurements for a whole population are distributed.
2. What do error bars include?
they include about 2/3 of sample
3. What percentage of values fall within 1 standard deviation of the mean? and 2?
68%; 95%
