[填空题]
Aaron lives in a remote country tol*1 halfqrrh)ub 60l ucs ;-r;wn in outback Australia. He uses Amazogdu tps*u sebt71xtz5+) 3y*/wog6ton.com to purchase everyday supplies. Due to his remote location, it can take numerous days for deliveries to arrive. Aaron records the number of days for an order tot )3t* t s1p*o5+gxu6o/gws dtzyueb7 arrive on his next ten orders, with the results as follows.
4,5,3,2,6,11,4,4,6,7
For this data set, find the value of
1. the median;
2. the mean;
3. the standard deviation.