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Name:
Average Known with Missing Data
A
B
C
D
1
The number of minutes students took to complete a quiz is summarized in the table below.
If the mean number of minutes was 17, which equation could be used to calculate the value of
x
?
a)
c)
b)
d)
A
B
C
D
2
The table below displays the results of a survey regarding the number of pets each student in a class has. The average number of pets per student in this class is 2.
What is the value of
k
for this table?
a)
9
c)
8
b)
2
d)
4