The standard deviation is a measure of how far away from the mean each observation deviates from the mean.
What is the standard deviation?
- The standard deviation is a statistic that expresses how much variance or dispersion there is in a group of numbers.
- While a high standard deviation suggests that the values are dispersed over a wider range, a low standard deviation suggests that the values tend to be close to the mean (also known as the anticipated value) of the collection.
- Standard deviation is most usually denoted in mathematical literature and equations by the lowercase Greek letter (sigma), which stands for the population standard deviation, or by the Latin sign s, which stands for the sample standard deviation. The abbreviation for
- standard deviation
- is SD.
- The mean and standard deviation of a normal distribution are both zero.
The mean would be 5 x 0 + 8 = 8.
The standard deviation would be 5 x 1 = 5.
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Answer:
Is that internal validity refers to the structure of a study and it's variables while external validity relates to how universal the results are.
Explanation:
This is called the crust: oceanic crust is around 5 km (3 miles) to 10 km (6 miles ) thick and the continental crust is 20 to 30 miles thick, (still, i think that the word you're looking for is "crust" or "oceanic crust" to be sure.
I think it’s the very last one to redraw it’s borders,
B is the correct answer.
Civil Service Reformers were led by people such as Theodore Roosevelt and others who fought against patronage systems in the mid to late 1800s.
