What is angle of pull the variance of force at different points in the range of motion of an exercis
Yes
The Weight Watchers website has information on exercise.
There are no bad points of exercise
Standard deviation is the square root of the variance. Since you stated the variance is 4, the standard deviation is 2.
The SD is 2.
A variance is a statistical measure that quantifies the spread or dispersion of data points in a dataset. It indicates how much each data point differs from the mean of the dataset. A higher variance value suggests a wider spread of data points, while a lower variance value indicates a more clustered data distribution.
The Weight Watchers website has a section on the different exercise programs.
First, we compute the variance by taking the sum of squares and divide that by N which is the number of data points in the same. It is average squared deviation of each number from its mean. The point is a squared number is always positive and N is always positive so the variance must always be non-negative. ( It can be 0). The variance is a measure of the dispersion of a set of data points around their mean value. It would not make sense for it to be negative.
That depends on the exercise of your choice.
Shortest distance between the two particular points through which motion is occured.
motion diagram
Sort of. If you log your exercise you can trade some of that for extra points to eat.