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Mean is 22. Median is 19. Mode is 31. Range is 18.

Step-by-step explanation:

Mean: add all the numbers and divide the answer by the number of numbers there were in the beginning.

31+16+13+19+31=110

110/5=22

Median: arrange the numbers in or Eder and find the middle

13,16,19,31,31

The middle is 19.

Mode: is the number that shows up frequently

Mode is 31 as it shows up twice

Range is the difference between the biggest and smallest number

31-13=18

18 is the range.

on your paper it doesn't say the answer but the the answer is altitude

step-by-step explanation:

step-by-step explanation:

the true statements are:

r = set of real numbers

n = set of natural numbers, 1,2,

w = n u{0} = {0,1,}