Answers to the sea ice questions.

1. 11.856
2. 10.026
3. 13.819
4. The answer should be an array whose shape is (35,12) or 35 rows and 12 columns.
• sea_ice_monthly[0,0:3] is array([ 15.222785,  16.03922 ,  16.502235])
• sea_ice_monthly[1,0:2] is array([ 14.566385,  15.69721 ])
5. The biggest decrease is 1.80775
6. Month 2.5.