The mode would be 12 because it appears most commonly in the set.
17
The mode of 18, 20, 15, 12, and 20 is 20. The mode is 20 because that number is the most common in the set.
The mode is 16.
15
The mean of the numbers is 22. The median of the numbers is 21. The mode is 16, 20 and 30 or you can say the set has no mode.
Mean - 15 ( Add them all together and divide by how many #'s you have. ) Median - 14.5 No mode (mode is number that appears the most)
sqrt(12)*sqrt(20) = sqrt(12*20) = sqrt(240) = sqrt(16*15) = sqrt(16)*sqrt(15) = 4*sqrt(15)
The mode is 15 because it occurs most often.
All of the numbers appear once and as a mode is the most commonly occurring number, there is no mode.
17 appears twice, 20 appears three times, 15 appears twice, 16 appears once and 67 appears once so the mode is 20.
10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20
Range = Maximum - Minimum = 20 - 8 = 12.