To calculate the sample mean x-bar, each researcher sums all the calorie counts for each scoop of ice cream. Thus, each researcher has summed together 20 values. Each researcher then divides that sum by the number of numbers summed together, which in this example is 20.
DEFINITION of 'Base Currency'. The first currency quoted in a currency pair on forex. It is also typically considered the domestic currency or accounting currency.For accounting purposes, a firm may use the base currency to represent all profits and losses.It is sometimes referred to as the primary currency.he first currency quoted in a currency pair on forex. It is also typically considered the domestic currency or accounting currency. For accounting purposes, a firm may use the base currency to represent all profits and losses. It is sometimes referred to as the primary currency.
A reserve currency is a currency that is held in significant amounts by governments and institutions in order to help conduct transactions in the global market. The major reserve currency of the planet right now is the US Dollar, which composes upwards of 60% of all forex reserves.The Euro has grown in prominence over the past decade as a reserve currency, and now makes up nearly 30% of all forex reserves through the world.ommodities such as oil and gold are usually priced in a certain type of currency (US Dollars), meaning that governments need to have large pools of US Dollars (or Euros) in their foreign exchange reserves in order to engage in the buying and selling of these commodities.