This new selection process was a huge success and the much-improved and heavier sheep were called Leicestershire sheep, and the cattle were known as Leicestershire Long-Horns. Robert Bakewell then continued with his work and went on to produce a new breed of black horses for both farm and army work.
In defining big data, itâs also important to understand the mix of unstructured and multi-structured data that comprises the volume of information. Unstructured data comes from information that is not organized or easily interpreted by traditional databases or data models, and typically, itâs text-heavy.
There are many reasons why the measure of the spread of data values is important, but one of the main reasons regards its relationship with measures of central tendency. A measure of spread gives us an idea of how well the mean, for example, represents the data. If the spread of values in the data set is large, the mean is not as representative of the data as if the spread of data is small. This is because a large spread indicates that there are probably large differences between individual scores.