Answer :
It is not possible for Carlos to raise his mean score to an 18, as he would need a total of 44 out of 40 available points.
How to calculate the mean of a data-set?
The mean of a data-set is given by the sum of all observations in the data-set divided by the cardinality of the data-set, which represents the number of observations in the data-set.
For the 8 assignments, he has a mean of 17, hence the sum of the scores is given as follows:
8 x 17 = 136.
For a mean score of 18 in 10 tests, the needed score is given as follows:
18 x 10 = 180.
Hence the number of needed points is given as follows:
180 - 136 = 44 > 40 available.
More can be learned about the mean of a data-set at https://brainly.com/question/1136789
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