The following scores were recorded on a 200-point final examination:193,185,163,186,192,135,158,174,188,172,168,183,195,165,183.

Find the final examination score.
Find the median final examination score.
Is the mean or median a more useful representative of the final examination scores?

If you post your answers, we'll be glad to check them.

Babygirl,

You have the same question as babygirl.

Does Bybygirl = Tim and vice-versa?

To find the final exam score, add all the scores and then divide by the number of scores listed, which is 15.

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Median is the middle value of a given list of numbers.

How do we find the median?

1-Put the numbers given in order from least to greatest.

2-If the list of numbers given is ODD, the median will be the middle number of the list.

3-If the list of numbers given is EVEN, we add the two middle numbers and then divide by 2.

Try it and then write back.

To find the final examination score, you need to sum up all the scores and divide by the number of scores recorded.

Here's how you can do it:

1. Add up all the scores:
193 + 185 + 163 + 186 + 192 + 135 + 158 + 174 + 188 + 172 + 168 + 183 + 195 + 165 + 183 = 2774

2. Divide the sum by the number of scores recorded:
2774 / 15 = 184.93333333

Therefore, the final examination score is approximately 184.93.

To find the median final examination score, you need to arrange the scores in ascending order and find the middle value. Here's how:

1. Arrange the scores in ascending order:
135, 158, 163, 165, 168, 172, 174, 183, 183, 185, 186, 188, 192, 193, 195

2. Since there are 15 scores, the middle value is the 8th score:
The median final examination score is 183.

To determine whether the mean or median is a more useful representative of the final examination scores, it depends on the context and purpose of the representation.

The mean (average) is useful when you want to know the central tendency of the scores and have a balanced distribution of data. It considers all the scores equally and can be influenced by outliers. In this case, the mean final examination score is 184.93.

The median is useful when you want to find a representative value that is not affected by extremes or outliers in the data. It provides a middle point of the scores when arranged in order. In this case, the median final examination score is 183.

In conclusion, if you want to know the typical score, the mean is more useful. However, if you want to know the middle value without being influenced by extreme scores, the median is more useful.