Explanation: I am sure you missed an extra 10 in your problem. There are supposed to be four 10's (Well at least in my problem). The rest you know, the answer are stated for the set of data: 10, 1, 10, 15, 1, 7, 10, 10, 1, 6, 13.
For A for the mean just add them all up which would be which is 430 and divide by the number of numbers there is so 430 divided by 8 = 53.75 and the median order them from least to greatest and find the one in the middle which is 52 and 56 when there's two just add them and then divide it by 2 which is 54
To find the degree of the polynomial, add up the exponents of each term and select the highest sum.So the least number of roots = 5 and this will also be the least possible degree of the polynomial