This video looks at how you can use the SOLVE feature and Ratio mode to solve problems and questions involving the Peterson Capture-Recapture method for estimating populations. This makes it very easy to use the ratio or capture to recapture to find the missing values.
In this video, we look at two examples of how and why the weighted mean is a better average to use than the arithmetic mean. We also look at a hack using statistics mode to make larger data sets a little easier to manage.
This video looks at finding the harmonic mean of values in a simple data set. The simplest way of calculating the harmonic mean is to use the reciprocal button or x to the power of minus one and the fraction button.
If you are using a formula in Spreadsheet mode on the Casio Classwiz, it will typically only display 5 significant figures in the cell and displays the formula on the working line. This video shows you how you can display the full calculator display for the values given by the formula.
You can use the Classwiz complex mode to input and work with a complex number. This video shows you how to change a complex number on a Classwiz calculator between modulus and argument form and Cartesian a+bi form.
You can use the Classwiz complex mode to input and work with a complex number. This video shows you how to input a complex number on a Classwiz calculator using i and looks at some of the options available, including finding the argument.
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