Question

Which is greatest for this set of data: 9, 10, 10, 10, 11, 12, 12, 13, 15? a. mean b. median c. range d. mode

Answer 1

The mean

Explanation:

Add all the numbers together and divide by the amount of numbers to get the mean, in this case it is 105/9. The mean is 11 and a third.

The median is the middle of the set of numbers. I usually go about getting a median by sorting the numbers from smallest to largest and then removing a number from each end until there are only one or two numbers left. In this case, there is one number remaining: 11. The median is 11.

The range is pretty simple, it's just the largest number of the group subtracted by the smallest. In this case it is 15-9. The range is 6.

The mode is the most frequently occurring number in the group. Just count up how many times each number appears, pick the one with the most, and you have your answer. The mode is 10.

The question is asking which one of these is the largest. That would be the mean, 11 and a third.

Answer 2

mean

Explanation:

9, 10, 10, 10, 11, 12, 12, 13, 15

mean = 11.3 is the sum of the number divided by number of terms

median=11 is the middle value

range= 6 is the difference between the largest and smallest amount

mode=10 is the term that occurs the most