Math Experiment on M&Ms Chance Experiment

You already know the total number of M&Ms in the pack (population) from Q.1. You can calculate the mean of the two totals in the table in Q.4 by dividing each total by 10 (= number of samples). Use these mean values in the first part of the equation to estimate the total number of red M&Ms in the population by filling in the known values and calculating the unknown value (numerator) in the second part of the equation. If a, b and d are known and the equation is a / b = c / d, you need to find c. There are several ways of doing this and it depends which method your son has been taught. A complete answer to the question would show all the working (including an explanation of where the values used in the equation have come from). Personally, I use the X method for proportion equations (multiply the numerator of one side by the denominator of the other and vice versa to give a x d = c x b. To get c on its own on one side of the equation, divide both sides by b to give (a x d) / b = c )

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