First to find the mean add up all the numbers
20+14+29+39+25+19+35
which is equal to 181 now divide that number by the amount of numbers in the set, at which there are 7
So divide 181 by 7
181/7=25.86
Now round
So the mean is 26
To find the range subtract the least number from the greatest number
In which the two numbers need here are 14 and 39
39-14=15
So the range is 15
