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the mean is the average value when you add together all of the numbers in your sample and then divide the result by the amount of numbers in the sample.the mode is the most common number in the sample, th...

Here we have 2 simultaneous equations including the variables x and y. Because we have x in one equation and 2x in another we can approach this in 2 ways. The first method is to obtain 2x in both equation...

First we can work out the actual number of small medium and large cakes. To do this we first add the ratio numbers together7+6+11 = 24We then divide the number of total cakes by this ratio number 192/24 =...

She is not correct. We can solve a quadratic equation in other ways. The easiest way is to use the formula for quadratic equations.x = (-b +/- sq. root (b^2 - 4ac) / 2ax = -3 +/- sq. root 3^2 - 4x -5 / 2 ...

First we need to understand what the range is. It is the difference between the smallest and largest numbers in a sample or list or numbers. If we add the range on to the smallest number we get the larges...