Please answer ab&c

a) Calculate the median number of medals for each medal type, stating the
formula you would use for determining the median for the gold medals.

b) Calculate the mean number of medals for each of the 3 medal types, stating
the formula you would use for determining the mean for the bronze medals.

C). Using the given spreadsheet as a basis, discuss the usefulness of a standard
deviation in a given dataset. You need to cite any literature sources you use.

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Its you again

50

step-by-step explanation:

the revenue of the fitness center, y, is the product of two factors: the number of members and the fee paid by each member. there are 320 members now, but number of members goes down by 10 for each $5 increase in fees, so if x is the number of $5 price increases then members is equal to (320 - 10x). since the fee is currently $45, and the fee increases by $5 for every price bump x, the fee is given by (45 + 5x). so, revenue y is given by y = (320 - 10x)(45 + 5x).