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```{r setup, include=FALSE}
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Analysis of the ToothGrowth Data Set

Simple Investigation

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The ToothGrowth data set, which contains information on the tooth growth of guinea pigs after receiving Vitamin C either through a pill (Treatment = VC) or orange juice (Treatment = OJ), has ?? records. 

An explorable table of the data is shown next.

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Simple Statistics of len

The tooth growth is recorded in the variable len. Its mean and standard deviation are shown below, followed by the five number summary.

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Recall, the mean is simply \bar{x} = (\sum_i x_i)/n while the formula for standard deviation is shown below. s = \sqrt{\sum_{i=1}^n \frac{\left(x_i - \bar{x}\right)^2}{n-1}}

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