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Define a class Quiz that implements the Measurable interface. A quiz has a score and a letter grade (such as B+). Use the DataSet class that I have provided to process a collection of quizzes. Do not edit the DataSet class provided. Display the average score and the quiz with the highest score(both letter and score). Import a Scanner.

/**
* Computes the average of a set of data values.
*/

public class DataSet
{
private double sum;
private Object maximum;
private int count;
private Measurer measurer;

/**
*Constructs an empty data set.
*/

public DataSet(Measurer aMeasurer)
{

sum = 0;
count = 0;
maximum = null;
measurer = aMeasurer;
}

/**
Adds a data value to the data set.
*/

public void add(Object x)
{
sum = sum + measurer.measure(x);
if (count == 0 || measurer.measure(maximum) < measurer.measure(x))
maximum = x;
count++;
}

/**
Gets the average of the added data
*/
  
public double getAverage()
{
if (count == 0) return 0;
else return sum / count;

}

/**
Gets the largest of the added data
*/

public Object getMaximum()
{
return maximum;
}
}

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