In one common system for finding a grade-point average, or GPA,

A = 4, B = 3, C = 2, D = 1, F = 0.

The GPA is calculated by multiplying the number of credit hours for a course and the number assigned to each grade, and then adding these products. Then divide this sum by the total number of credit hours. Because each course grade is weighted according to the number of credits of the course, GPA is called a weighted mean. Calculate the GPA for this transcript:

.....

Grades	# of credit hours
B	5
B	5
B	4
C	5

The grade point average is ?.

(Round to the nearest hundredth as needed.)

In a class of 40 students, 21 have examination scores of 77%. Which measure or measures of central tendency can you immediately determine? Explain your answer.

Choose the correct answer below.

A.

The mode and midrange are 77% because the majority of scores are 77%. No other measures can be determined.

B.

The mode is 77% because the majority of scores are 77%. The median is 77% because 77% will be the 20th and 21st data items in an ordered list, regardless of the other data items. No other measures can be determined.

C.

The mode is 77% because the majority of scores are 77%. No other measures can be determined.

D.

The mean is 77% because the majority of scores are 77%. The median is 77% because 77% will be the 20th and 21st data items in an ordered list, regardless of the other data items. No other measures can be determined.

2 separate problems, thx!:)