2 The random variable \(X\) has the distribution \(\operatorname { Geo } ( 0.2 )\). Find
- \(\mathrm { P } ( X = 3 )\),
- \(\mathrm { P } ( 3 \leqslant X \leqslant 5 )\),
- \(\mathrm { P } ( X > 4 )\).
Two independent values of \(X\) are found.
- Find the probability that the total of these two values is 3 .