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HCA Healthcare, Inc. (historically known as Hospital Corporation of America) is an American global for-profit operator of health care facilities that was founded in 1968. It is based in Nashville, Tennessee, and, as of May 2020, owned and operated 186 hospitals and approximately 2,400 sites of care, including surgery centers, freestanding emergency rooms, urgent care centers and physician ...
big.assets.huffingtonpost.com
The search for MH370 had stalled for years, until an unlikely source offered a different way to follow the evidence.
In data mining and statistics, hierarchical clustering[1] (also called hierarchical cluster analysis or HCA) is a method of cluster analysis that seeks to build a hierarchy of clusters. Strategies for hierarchical clustering generally fall into two categories: Agglomerative: Agglomerative clustering, often referred to as a "bottom-up" approach, begins with each data point as an individual ...
The Huffington Post
In probability theory, a log-normal (or lognormal) distribution is a continuous probability distribution of a random variable whose logarithm is normally distributed. Thus, if the random variable X is log-normally distributed, then Y = ln X has a normal distribution. [2][3] Equivalently, if Y has a normal distribution, then the exponential function of Y, X = exp (Y), has a log-normal ...
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