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.
FBF = Flashback Friday. #FBF is an acronym primarily used on Instagram, Facebook, Twitter, and Tumblr that stands for Flashback Friday. Users typically use the tag on photos of moments in their past, like last yearâs vacation or a childhood friend.
Report Abuse. FOB is an abbreviation for Free On Board (an alternative term is Freight on Board). The term FOB (often seen as f.o.b.) is commonly used when shipping goods, to indicate who pays loading and transportation costs, and/or the point at which the responsibility of the goods transfers from shipper to buyer.he shipment cost will be paid by the customer/buyer. fob(destination)-means the price includes the shipment cost up to the place of the customer/buyer.