Would 20 fit in all your values?
Look at your min and max values. This should be the key. I would choose 25.
Of the following choices, what would the BEST interval size be if you want to use 10 intervals?
a. 10
b. 25
c. 20
d. 5
e. 30
now here is the number sequence...
31 46 78 219 45 147 33 45 112 108 194 125 68 99 134 201 78 115 101 176
I think the answer is 20. My question is am I correct or am I going about it wrong