Answer:
Mean: 11.2
Median: 11
Mode: There is none
Step-by-step explanation:
mean -you add all the numbers and divide by the number of numbers
median- you arrange the data set by numerical value (increasing) and it is basically the "middle number" for example 1, 2, 3, (2 would be the "middle" number" )
mode- is the number that appears most often. in this scenario, all numbers appear the same amount of times (1) so there is no mode.
mathematically the answer to that is 18 because 10.2 minus 2.4 is equal to the difference of 7.8 and 7.8 plus 10.2 is equal to the sum of exactly and positively 18