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Mathematics
Problem
Five observations 3, 5, 7, a, b have mean 6 and variance 4. If
a
≤
b
a \le b
a
≤
b
, identify the ordered pair (a, b). a)
(
7
,
8
)
(7,8)
(
7
,
8
)
b)
(
6
,
9
)
(6,9)
(
6
,
9
)
c)
(
5
,
10
)
(5,10)
(
5
,
10
)
d)
(
3
,
12
)
(3,12)
(
3
,
12
)
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