A Statistics teacher has the following test scores : 93, 72, 80, 95, 90, 70, 91, 85, 86, 100 What is the median test score of these grades ?

Well, it seems like the median test score in this case would be the score that makes the teacher feel average, just like any other teacher (sorry, teachers!). To find the median, we need to arrange the scores in order from lowest to highest: 70, 72, 80, 85, 86, 90, 91, 93, 95, 100. Now, since we have an even number of scores, we need to find the average of the two middle scores. So, the median is (90 + 91) / 2 = 90.5. So the median test score is 90.5. Just remember, even if you don't score a perfect 100, you can still be a perfect clown!

To find the median test score, we need to arrange the scores in ascending order. Then, we will determine the value that appears in the middle of the list.

First, let's arrange the scores in ascending order:
70, 72, 80, 85, 86, 90, 91, 93, 95, 100

Now, we can see that there are 10 scores. Since there are an even number of scores, there is no single middle value. Instead, we need to find the average of the two middle values.

The two middle values in this case are 86 and 90. To find the average, we add these two values and divide the sum by 2:
(86 + 90) / 2 = 88

Therefore, the median test score of these grades is 88.

The median means the number in the middle. Put the numbers in order from least to greatest and then cross them out at each end one by one until you get to the one in the middle. If there are two left, take the average of them. Post your answer here if you want it checked.

I see two scores in the middle -- 86 and 90.

Follow Jen's directions for determining the median.

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80

i HAVE AN ANSWER OF 90