Say we have a bunch of numbers like 9, 2, 5, 4, 12, 7, 8, 11. To calculate the standard deviation of those numbers: 1  1. 2  Work out the Mean (the simple average of the numbers). 3  2. Then for each number: subtract the Mean and square the result. 4  3. Then work out the mean of those squared differences.5  4. Take the square root of that and we are done!o calculate the standard deviation of those numbers: 1  1. 2  Work out the Mean (the simple average of the numbers). 3  2. Then for each number: subtract the Mean and square the result.
Best Answer: The .925 does mean sterling silver and the FB may be a Hallmark. You did not state what is on the medallion so I don't know where it was made. On some silver items the FB stands for Franz Bibus a Czech silversmith.
Fringe benefits (FB) are employee associated costs such as health plan expenses, pension plan expenses and workman's compensation expenses, among others. These costs are expressed as a rate by employee class. The rate is the pooled costs of these benefits divided by the total salaries in each employee class. These rates are then applied to the applicable employee salary to represent the associated benefits for that type of employee. Our sponsors will reimburse us for fringe benefit costs, expressed as a percentage of total salaries. As salaries and FB can represent the largest component of cost on a given project, the University negotiates its FB rates with the federal government on an annual basis.