If the 5 scores have a mean of 8, then their total sum would be 8*5 = 40
Now if one score if added (let's call this score x), there are 6 scores and the mean changes to 9, thus:
(40 + x)/6 = 9
40 + x = 54
x = 14
52.311 is greater than 52.31 because look at 52.311 and 52.31
Compare 100 to 110, and see that to go from 100 to 110 is a 10% increase, but to go from 110 back down to 100 is a 9.09% decrease not a 10% decrease
Answer:
15
<em>Hope that helps! :)</em>
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<em>-Aphrodite</em>
Step-by-step explanation:
