Answer to Question #139500 in Statistics and Probability for Ella Ssebulime

Question

Weighted Average Grade.

Suppose that your grade for the class is dependent upon four marking

periods (MP1, MP2, MP3, MP4), each worth 20%, a midterm (MT) worth 10%, and a final exam (FE)

worth 10%. Below is a table of grades for the entire year. Calculate the weighted average grade

to obtain your final average.

Grade/Term

MP1

MP2

MT

MP3

MP4

FE

Grade

84

86

75

94

95

80

Answer 1

in the following table given grade and percentage written in decimal .(divide percetnage by 100 to convert it to decimal):

formula: Weighted average= $\frac{\sum(grades*frequency)}{\sum (frequency)}$

=$\frac{84.7}{1.0}$

=84.7