7 The table shows the numbers of members of a swimming club in certain categories.
| \cline { 2 - 3 }
\multicolumn{1}{c|}{} | Male | Female |
| Adults | 78 | 45 |
| Children | 52 | \(n\) |
It is given that \(\frac { 5 } { 8 }\) of the female members are children.
- Find the value of \(n\).
- Find the probability that a member chosen at random is either female or a child (or both).
The table below shows the corresponding numbers for an athletics club.
| \cline { 2 - 3 }
\multicolumn{1}{c|}{} | Male | Female |
| Adults | 6 | 4 |
| Children | 5 | 10 |
- Two members of the athletics club are chosen at random for a photograph.
(a) Find the probability that one of these members is a female child and the other is an adult male.
(b) Find the probability that exactly one of these members is female and exactly one is a child.