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[MUSIC]

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Hi, my name is Megan and
I'm a teacher here at Treehouse.

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My pronouns are she, her, hers.

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In this course, I will refresh
your knowledge of some necessary

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math skills that you will
need to be a data analyst.

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A little stressed already?

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Don't worry, I highly encourage
you to use a calculator or

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your computer to do
the calculations in this course.

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Performing calculations is one of
the primary uses of computers and

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they are terrific at doing that.

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We'll also take a look at how
to perform these using Python.

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We're going to look at how
to calculate the minimum,

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maximum, median, mean,
and mode of datasets.

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These might be used to calculate
things like the average age of people

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at a convention or the most common
favorite food listed on a survey.

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We're also going to do a review of
percentages and the order of operations.

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In this course, we'll do
the calculations manually first, and

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then using Python to
produce the same results.

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Let's dive in.