The answer should be less than
To find the IQR you first need to write it in numerical order
77, 81, 83, 84, 86, 86, 88, 92
IQR is just Q3 - Q1
Q1 is the middle of the first have, since it has an even set of 4 numbers in the first half you need to take the average of the two middle ones.. which is 82
Q3 done the same process would be 87.
87 - 82 = 5
IQR = 5
Two equivalent ratios for 30 to 6 can be 15 to 3 or 45 to 9
The range is [4,∞)
Or from 4 to positive infinity
Or y is greater than or equal to 4
