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Grade-Point Average Marissa has just completed her second semester in college. She earned a B in her five-hour calculus course, an A in her three-hour social work course, an A in her four-hour biology course, and a C in her three-hour American literature course. Assuming that an A equals 4 points, a B equals 3 points, and a C equals 2 points, determine Marissa’s grade- point average for the semester.

Respuesta :

Answer:

Approximately Marissa’s grade- point average for the semester is 3 that is grade B.

Step-by-step explanation:

We are given the following in the question:

Grade in five-hour calculus course = B

Grade in her three-hour social work course = A

Grade in her four-hour biology course = A

Grade in her three-hour American literature course = C

A = 4 points

B = 3 points

C = 2 points

We will calculate weighted mean.

[tex]\text{Weighted mean} = \displaystyle\frac{\sum w_ix_i}{\sum w_i}\\\\\sum w_ix_i = 5(3) + 3(4) + 4(4) + 3(2) = 49\\\sum w_i = 5 + 3 + 4 + 3 = 15\\\\\text{Weighted mean} = \frac{49}{15}=3.27[/tex]

Thus, approximately Marissa’s grade- point average for the semester is 3 that is grade B.

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