Mercury is the only common metal which is liquid at ordinary temperatures. Mercury is sometimes called quicksilver. It is a heavy, silvery-white liquid metal. It is a rather poor conductor of heat if compared with other metals but it is a fair conductor of electricity. It alloys easily with many metals, such as gold, silver, and tin. These alloys are called amalgams.
describe big data, so that you can speak intelligently about it when asked. So probably the main thing to recognize is this notion of the three V's of big data, which are volume, velocity and variety.
Conceptually, the three quartiles (Q1, Q2, and Q3) divide the list of sorted data into four categories: 1  25% of the values are less than or equal to Q1. 2  25% of the values are between Q1 and Q2. 3  25% of the values are between Q2 and Q3.  25% of the values are greater than or equal to Q3.