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Mathematics
Mathematics
Problem
Suppose
P
P
P
and
Q
′
Q'
Q
′
are subsets of
U
U
U
.
n
(
U
)
=
15
n(U) = 15
n
(
U
)
=
15
,
n
(
P
)
=
6
n(P) = 6
n
(
P
)
=
6
, and
n
(
Q
′
)
=
4
n(Q') = 4
n
(
Q
′
)
=
4
. Find: a. a
n
(
P
′
)
n(P')
n
(
P
′
)
b. b
n
(
Q
)
n(Q)
n
(
Q
)
.
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