An instructor is evaluating the performance of students on a test.He records the number of points that each student missed and created a frequency distribution.This is provided below:
What is the mean number of points missed?
A)20
B)25
C)29
D)30
E)35

Question

An instructor is evaluating the performance of students on a test.He records the number of points that each student missed and created a frequency distribution.This is provided below: 
What is the mean number of points missed?
A)20 
B)25 
C)29 
D)30 
E)35

Quizplus · Accepted Answer

To find the mean, we need to multiply each point missed value by its frequency, sum the products, and divide by the total number of students. Using the given frequency distribution, we can calculate:
(0*5) + (1*12) + (2*15) + (3*6) + (4*2) + (5*0) + (6*0) = 105
105/40 = 2.625
Therefore, the mean number of points missed is 2.625, which is closest to 29 when rounded to the nearest whole number.

An Instructor Is Evaluating the Performance of Students on a Test.He