Average Problems
SSAT Middle Level Quantitative · Flashcards
SSAT MIDDLE LEVEL QUANTITATIVE · FLASHCARDS
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QUESTION
How much does the average change if one value
x
x
x
is increased by
5
5
5
in a set of
n
n
n
numbers?
QUESTION
State the weighted average formula for values
a
,
b
a,b
a
,
b
with counts
m
,
n
m,n
m
,
n
.
QUESTION
State the formula for the average of
n
n
n
numbers with sum
S
S
S
.
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ANSWER
A
=
S
n
A=\frac{S}{n}
A
=
n
S
. The average is computed by dividing the total sum
S
S
S
by the number of elements
n
n
n
.
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