Dear Bridget,

Yes, I think there were typos in my solution file.

For number 6, first, you need to write the list of data in increasing order. 

1 2 | 3 4 | 4 5 | 8 10 

median = the average of 4 and 4, so it is 4.

LQ = the median of lower half, so it is the average of 2 and 3

UQ = the median of upper half, so it is the average of 5 and 8. 

IQR = UQ - LQ

For number 10, we have

1 2 4 8 16 32 64

I highlighted the median. LQ is 2 and UQ is 32, so IQR = 30.

Thanks,

Harim Yoo