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7. because you would put the number set into order from least to greatest first, ti would look like this: 2,3,4,5,9,10,12,12. then go to the middle, crossing one from each side off at one time. Then you get 5 and 9 in the middle. Then the middle between 5 and 9 is seven, you can check this by: 5+9=14, then 14/2= 7.
Your median is 7.

The median of the given data set after arrangment from least to greatest term is; 7

What is the median of the data set?

The median is simple defined as the mid term of a set of data when arranged from least to greatest.

Arranging this number from least to greatest is:

2, 3, 4, 5, 9, 10, 12, 12.

From this arrangement of data set from least to greatest, we see that there are 8 terms and as such there is no direct middle term.

Thus, to get the median here, we will add the 2 middle terms and divide by 2.

Thus; Median = (5 + 9)/2 = 7

Read more about median at; https://brainly.com/question/8892632