Imagine that 11 people take a 10 question test. Suppose one student gets 10 correct answers, one gets
9 correct, one gets 8 correct, and so on, all the way down to the student getting none correct. What is
the mode score, accurate to three decimal places?
We need to find the mode, if 11 people take a 10-question test and one student gets 10 correct answers, one gets 9 correct, one get 8 correct, and so on, all the way down to student getting 0 correct.
We know that mode for a discrete variable is the value that occurs the most often.
In the case given in the problem every student got each of the 11 possible correct answers from 0 to 10.
Thus, the distribution is perfectly flat.
Therefore, there is no mode.
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