A. Median number is the middle number. We can cross one off from left to right to get 4.
B. Interquartile range is Q3-Q1. Q1 is 2 and Q3 is 5, so the interquartile range is 3.
C. I don't know the original set, but an outlier can affect the mean.
Answer: 
-3 times the square root of 5
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Explanation:
Let 
Replace all the root 5 terms with x and we go from
to
From here, combine like terms to get
and the last thing to do is replace the x with sqrt(5)
Meaning that,
Answer:
C.) I x - 1 I + 3
Step-by-step explanation:
Since the bottom of the line is 3 units up, the equation should have "+ 3". Since the bottom of the line is one unit to the right, the equation should have "x - 1"
