Question

Suppose that an instructor assigns different letter grades based on points earned on a 10-point quiz, and that all scores have been verified to be between 0 and 10 inclusive. Also suppose that four possible letter grades can be assigned and that 9 or 10 points is an A, 7 or 8 points is a B, 6 points is a C, and 5 or fewer points is an F. To assign letter grades, the most efficient numeric array containing point values would contain ___________ elements.a. tenb. fivec. fourd. three

Answer 1

Answer:

three

Explanation:

Since there are four grades to be represented, any three letter grades can correspond, with a one-to-one mapping, to the elements in the numeric array. Any point that is not represented can be given to the fourth letter grade.

This is also possible because it has been verified that all scores are between 0 and 10. Not more.

Hope this helps!