If eight students scored 100 on a test, twelve scored 90, and eight scored 80, what was the mean of the
1 answer:
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Answer:
Here is the complete question attached with.
The mean score would decrease more than the median score.
Step-by-step explanation:
The numbers for which we have to find the mean and median are:
Here the mean,
Median, as median is the middle term if the observations are arranged in ascending order.
Now as the question says that we have to add a zero to see its effect.
So adding a zero we have
Mean
Median ,as number of observations is even terms so we will add two middle numbers and divide it with
.
So we can conclude that the mean is having more variation than the median.
Mean shows as variation of where as Median shows a variation of
only.
So our final answer is option D that is "The mean score would decrease more than the median score."
-2.083333333333
Step-by-step explanation:
I got a rational number which is -2.083333333
-2x-10x=25
-12x=25
x=-2.083333
