Rangers made an operating loss of Â£14m on a turnover of Â£19.1m. Rangers raised a total of Â£35.2m in finance, Â£22m of which was from last Decemberâs Initial Public Offering of Shares. As of June, there was Â£11.2m cash left in the bank, which included Â£4.5m of season ticket renewal income.
Mean of Grouped Data. The mean (or average) of observations, as we know, is the sum of the values of all the observations divided by the total number of observations. If x1, x2,. . ., xn are observations with respective frequencies f1, f2, . . ., fn, then this means observation x1 occurs f1 times, x2 occurs f2 times, and so on.
When working with a large data set, it can be useful to represent the entire data set with a single value that describes the middle or average value of the entire set. In statistics, that single value is called the central tendency and mean, median and mode are all ways to describe it.o find the variance in a data set, subtract each number from the mean, and then square the result. Find the average of these squared differences, and that is the variance in the group. In our original group of five servers, the mean was 99.