For each of the following, decide whether the mean, median, or mode would be the most useful measure of central tendency. Explain each answer with at least one complete sentence. (no explanation no points) Calculations are not necessary. a) The following table gives the results of a survey in which 2,400 consumers were asked to indicate which brand of soap they purchased (most recent purchase). Ivory 20.2% Dove 16.2% Softsoap 7.7% Safeguard 7.2% Irish Spring 4.6% Others 44.1% b) A marketing researcher wants to find the income of the people who buy his company’s product. He finds the income of ten people who have recently purchased the product. Five earn twenty thousand, three earn thirty thousand, one earns forty thousand, and one customer earns eighty thousand. c) A recent study found that, in the US, the percent of electricity generated by coal is 44.9%, by natural gas is 23.4%, 20.3% by nuclear reactions, 6.9% by hydroelectric, 3.6% by wind and solar power, and 1% is generated using petroleum.