Question

Suppose your statistics instructor gave six examinations during the semester. You received the following grades (percent correct): 92, 70, 84, 87, 90, and 75.To compute your final course grade, the instructor decided to randomly select two exam scores, compute their mean, and use this score to dtermine your final course grade.

Answer 1

Answer:

Average of final course grade is 83.

Step-by-step explanation:

Given : Suppose your statistics instructor gave six examinations during the semester. You received the following grades (percent correct):

92, 70, 84, 87, 90, and 75.

To find : Compute their mean, and use this score to determine your final course grade ?

Solution :

Mean is defined as the total data divide by number of data.

$M=\frac{\sum x_n}{n}$

$M=\frac{92+70+84+87+90+75}{6}$

$M=\frac{498}{6}$

$M=83$

Therefore, Average of final course grade is 83.