Empirical rule. States that, in a normal distribution, about 68% of the terms are within one standard deviation of the mean, about 95% are within two standard deviations, and about 99.7% are within three standard deviations (normal curve). Lurking Variable.
Since then, thanks to an additional boost from TLC, the Duggarsâ net worth has grown to an estimated $3.5 million. Although we canât all have lucrative reality TV contracts, most of us can learn a few things from the Duggarsâ money philosophyâ¦.
She is the planetâs fifth-richest woman and has a net worth of $17.3 billion, according to the Bloomberg ranking. She gained control of the Koch stake following the death of her husband, E. Pierce Marshall, in 2006. Bill Gates remains the worldâs wealthiest person, controlling a $79.5 billion fortune.