Find the mean, median, and mode of the list of numbers. If necessary, round to the nearest tenth.
-100, 67, 84, 67, 81
A)mean: 79.8 median: 81 mode: 67
B)mean: 83 median: 84 mode: 100
C)mean: 99.8 median: 82.5 mode: 67
D)mean: 79.8 median: 81 mode: 100

Question

Quizplus · Accepted Answer

To find the mean, add up all the numbers and divide by the total number of numbers: (100+67+84+67+81)/5 = 79.8. 
To find the median, put the numbers in order: 67, 67, 81, 84, 100. The median is the middle number, which is 81. 
To find the mode, you look for the number that appears most often. In this case, the number 67 appears twice, while every other number appears only once, so 67 is the mode. Mean is the sum of all numbers divided by the total number of numbers. (100 + 67 + 84 + 67 + 81) ÷ 5 = 79.8
To find the median, the numbers need to be arranged in ascending or descending order. 67, 67, 81, 84, 100. The middle number is 81.
Mode is the number that appears most frequently. In this case, it is 67. So the answer is A.

Find the Mean, Median, and Mode of the List of Numbers