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iogann1982 [59]
3 years ago
12

Students get two grades for a test in an introductory psychology course: a letter grade, and a numerical equivalent (weighted va

lue). So an A is worth 4 points, a B is worth 3 points, a C is worth 2 points, a D is worth 1 point, and an F is worth O points. The results for the test are listed in the table below. Score Number of students 11 18 52 13 6 Using the numerical equivalents (weighted values), what is the average grade for this test? Rounded to the nearest hundredth, the average grade is
Mathematics
2 answers:
tamaranim1 [39]3 years ago
8 0

Answer:

 Average grade for this test is 2.15 .

Step-by-step explanation:

Formula

Mean = \frac{Sum\ of\ all\ observation}{Total\ number\ of\ observation}

As given

Students get two grades for a test in an introductory psychology course: a letter grade, and a numerical equivalent (weighted value).

   Grade    Points    Student Score

      A          4             11            44

      B           3            18           54

      C           2            52          104

      D           1              13           13

      F           0             6            0

Sum of total score = 44 + 54 + 104 + 13 + 0

                               = 215

Total number of the students  = 11 + 18 + 52 + 13 + 6

                                                  = 100

Putting all the values in the mean formula

Mean = \frac{215}{100}

Mean = 2.15

Therefore  average grade for this test is 2.15 .

jolli1 [7]3 years ago
6 0
11+18+52+13+6=100 100/5=20 average is 20 points
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