I really need help and I would greatly appreciate it

Answer:
3/19 × 100% = 15.78
b. 7
12-5 = 7
To find the range, first order the data from least to greatest. Then subtract the smallest value from the largest value in the set.
c. 8
because 8 divides the age group making half the people younger than this age and half are older
2 . a - highest point is 8.7
c . georgina did better then half of the other gymnists which can be seen because the highest point is 8.7 where there are many who 7.7
mark brainliest pls