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Montano1993 [528]
3 years ago
14

Shaan’s math homework scores for the semester are 90, 85, 98, 60, 84, and 78. Shaan’s teacher said she would drop the lowest hom

ework score when calculating grades. How does the mean of Shaan’s actual math scores compare to the mean of the scores when the lowest one is dropped?
a. The relationship cannot be determined.
b. The final mean is the same as the original.
c. The final mean is lower than the original.
d. The final mean is higher than the original.
Mathematics
2 answers:
Tatiana [17]3 years ago
8 0

Answer:

The final mean is higher

Step-by-step explanation:

The mean of all the scores = \frac{90  + 85 + 98 + 60 + 84 + 78}{6\\} = \frac{495}{6} = 82.5\\

The mean of the scores with the 60 dropped = \frac{435}{5} = 87

The final mean is higher

That will always happen when you drop the lowest score.  I worked it out for you so that you would see that it happened in your case.

IceJOKER [234]3 years ago
6 0

Answer:

lol i have this question too

Step-by-step explanation:

btw is yall really in highschool, cuz this is a middle school question......

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