Answer:
since -5 and -5 are the same number, they are on the same y axis so the only distance we need to calculate is between the X coordinates
so when looking for distance you can not have a negative what |-3|+|9| is looking for is the distance from 0 on the X axis since distance can't be negative, (you go 3 miles away from your house in one direction, vs 3 miles in the opposite both ways is positive, even with opposite directions same with axis, it doesnt matter which way, only the number.) you need the absolute value of -3 to get the distance from the 0 on the x axis
short version: distance is positive and its adding the distances from the x axis to get distance from each other
Step-by-step explanation:
All i know is 1 yd = 30 in
What is the interquartile range of this data set 2,5,9,11,18,30,42,48,71,73,81
katrin [286]
First, find the median: 30
Then, find the median of the 2 sides from 30 (Q1 and Q3)
The middle value between 2 and 18 is 9. The middle value between 42 and 81 is 71. Now, just subtract 71-9.
The IQR is 62 :)
