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.
FBL Financial Group, Inc. is a financial services holding company whose purpose is to protect livelihoods and futures. Its primary operating subsidiary, Farm Bureau Life Insurance Company, underwrites and markets a broad range of life insurance and annuities to individuals and businesses. These products are distributed by multiline exclusive Farm Bureau agents, principally under the consumer brand name Farm Bureau Financial Services. In addition, FBL manages all aspects of two Farm Bureau-affiliated property-casualty insurance companies for a fee. FBL Financial Group is headquartered in West Des Moines, Iowa, and is traded on the New York Stock Exchange under the symbol FFG.