Stats Question

<p>I have a question for AP Stats:</p>

<p>OIne hundred Lower Wabash students take a 10-question multiple choice test with four answers to each question, exactly one of which is correct. All of the students are unprepared and must guess at each question.</p>

<p>How many unprepared students would have to take this test to guarantee ten scores of 6? Ten scores of 7? Ten scores of 8? </p>

<p>I need help ASAP and would really appreciate it!!!!</p>