Yup its 53 Degrees you got it right :)
The sum(9) of half of the first number(1/2a) and one third of the second number(+1/3b)
That is correct
D the mathematical work shown sbove is correct as written
The value calculated by adding all the values of in a data set and dividing the sum by the number of values → Mean
The middle value when all the values are in order from least to greatest → Median
The value that appears most often in a data set → Mode
Hope this helped :)
