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

 Average grade for this test is 2.15 .

Step-by-step explanation:

Formula

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 = 2.15

Therefore  average grade for this test is 2.15 .

i dont know

step-by-step explanation:

hello from mrbilldoesmath!

answer:

(7 x + 6 y) (49 x^2 - 42 x y + 36 y^2)

discussion:

the trick is to recognize that 343 = 7^3 and 216 = 6^3 and, in general,

a^3 + b^3 =   (a + b) (a^2 - a b + b^2).

in our case

343x^3+216y^3   =   (7x)^3 + (6y)^3

so take a = 7x and b = 6y in the above equation to get the answer.

you,

mrb