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Find the cardinal number of the following sets.
(i) \(M = \{p, q, r, s, t, u\}\)
\(n(M) =\)
(ii) \(P = \{x : x = 3n + 2, n \in \mathbb{W}\) and \(x < 15\}\)
\(n(P) =\)
(iii) \(Q = \{y : y = \frac{4}{3n}, n \in \mathbb{N}\) and \(2 < n ≤ 5\}\)
\(n(Q) =\)
(iv) \(R = \{x : x\) is an integers, \(x \in \mathbb{Z}\) and \(-5 ≤ x < 5\}\)
\(n(R) =\)
(v) \(S =\) The set of all leap years between \(1882\) and \(1906\).
\(n(S) =\)
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