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Aʙᴏᴜᴛ Tʜɪs Vɪᴅᴇᴏ – This video looks at finding summary statistics for a small data set on the TI-Nspire. We input the data into a document, set up like a spreadsheet from which the calculator can produce summary statistics including mean, standard deviation and the quartiles. We can then create another document which use the same data to produce a box plot showing outliers.
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Aʙᴏᴜᴛ Tʜɪs Vɪᴅᴇᴏ – This video looks at how you can find the mean of a normal distribution given a probability for a certain X value. We make use of the standard Normal distribution, with a standard deviation of 1 and a mean of 0 and find a relevant Z value. We then use this value in the formula for Z values and solve for the mean.
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]]>The post How To Work Out Weighted Mean – Casio Classwiz fx-991EX appeared first on The Calculator Guide : Mathematics Help - Casio Skills - Education Technology.
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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.
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]]>The post How To Find The Harmonic Mean – Casio Classwiz fx-991EX appeared first on The Calculator Guide : Mathematics Help - Casio Skills - Education Technology.
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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.
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]]>The post How To Work Out Geometric Mean – Casio Classwiz fx-991EX appeared first on The Calculator Guide : Mathematics Help - Casio Skills - Education Technology.
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This video shows you how you can calculate the Geometric Mean of a small data set using two variations of the formula. It also briefly refers to the product feature on some models of Classwiz
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]]>The post Coding Data & Finding Mean Using Spreadsheet on Casio Classwiz appeared first on The Calculator Guide : Mathematics Help - Casio Skills - Education Technology.
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The post Coding Data & Finding Mean Using Spreadsheet on Casio Classwiz appeared first on The Calculator Guide : Mathematics Help - Casio Skills - Education Technology.
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