# High School R Homework

The vector `problem.1.data` contains numeric data.

## Part (a)

Construct a stipchart of the values in `problem.1.data`. Do you see any evidence of any outliers?

**Solution**

## Part (b)

Repair this outlier.

* First, report the location of the outlier.

* Next, convert the value to `NA`.

* Finally, display the value of the vector at this location, and show that it has the value `NA`.

**Solution**

## Part (c)

Construct a stripchart of the repaired version of `problem.1.data`. Do you see any indication of a -9 being used to represent a missing value?

**Solution**

## Part (d)

It's not best practice to represent a missing value using the value -9, so we need to repair this.

* First, report the location of the element with -9.

* Next, convert the value to `NA`.

* Finally, display the value of the vector at this location, and show that it has the value `NA`.

**Solution**

## Part (e)

Construct a stripchart of the repaired version of `problem.1.data`. Do you see any indication of an extreme outlier (i.e.\ 99999) or a -9 being used to represent a missing value?

**Solution**

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