In future, blood samples may be taken by an autonomous robot rather than a healthcare professional – if Dutch developer Vitestro can get its prototype approved for marketing. Vitestro's blood drawing ...

Here is the data for the ages of customers shopping in the Bitesize CD store. Ages of customers in 1-hour period 25, 29, 45, 19, 36, 17, 60, 51, 39, 24, 15, 13, 31 ...