Hi Saronda R.
Range is 11 minus 2 or 9
There is no mode
You can look up the definitions for range, median, mode, and mean in your text or on the internet, then apply them to your numbers accordingly
2,11,5, 6
Secondly I'd also recommend putting your numbers in order from smallest to largest
Range is the difference between the highest and lowest values for your numbers 11 minus 2 = 9
Mode is the item that occurs most often in your set of numbers looks like you don't have a mode
Mean is the average; the numerical sum of your numbers divided by the amount of items in your set of numbers. You have 4 numbers that total some number.
Look up the median so you can learn the definition and distinguish it from the mean.
I'll leave the determination of the mean and median to you
If you have any questions please just send a message.
Hope this helps once you learn and apply the definitions they should become easy to apply.