Forty students in a class take a test that is graded on a scale of 1 to 10. The histogram in the figure shows the grade distribution, with the x-axis representing the grades and the y-axis representing the number of students obtaining each grade. If the mean, median, and modal values are represented by n, p, and q, respectively, which of the following is true?

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Forty students in a class take a test that is graded on a scale of 1 to 10. The histogram in the figure shows the grade distribution, with the <i>x</i>-axis representing the grades and the <i>y-</i>axis representing the number of students obtaining each grade. If the mean, median, and modal values are represented by <i>n, p, </i>and <i>q</i>, respectively, which of the following is true?<br><img src='https://www.fatskills.com/images3/civilservice/image_017_016.png'/>