Math Experiment on M&Ms Chance Experiment
By angelmels
@angelmels (541)
Australia
2 responses
@owlwings (43910)
• Cambridge, England
8 Sep 17
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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@owlwings (43910)
• Cambridge, England
8 Sep 17
@angelmels Most of it is just following the instructions, which is basically counting and recording the numbers. The rest is plugging the numbers into the places specified and dividing one number by another (I presume that a calculator is allowed).
@NoorNoor (2131)
• India
8 Sep 17
@angelmels I'm sorry.I don't understand.hope you got some ideas from owlwings.