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# Data Analysis Student Response

If the average (arithmetic mean) of the length and the width of a rectangle is $$20,$$ what is the perimeter of the rectangle?

What is the sum of the $$4$$ numbers whose average (arithmetic mean) is $$40?$$

An integer from $$1$$ to $$25$$ inclusive is chosen at random. If the probability that the integer is odd can be expressed as the reduced fraction $$\frac{a}{b},$$ what is $$a+b?$$

In a school of $$300$$ students, there are $$A$$ students who take a music class and $$B$$ students who take art class, $$x$$ students who attend both, and $$C$$ students who are not enrolled in music or art. If $$A=220, B=150,$$ and $$C=50,$$ what is the value of $$x?$$

How many 4-letter words can be formed with $$7$$ distinct letters if no letter is repeated?

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