Using the information given, complete the following tree diagram.

Calculate the probability that it will snow tomorrow.

     (A1)(A1)(A1)     (C3)

Note: Award (A1) for each correct pair of probabilities.

[3 marks]

\(0.2 \times 0.6 + 0.8 \times 0.1\)     (A1)(ft)(M1)

Note: Award (A1)(ft) for two correct products of probabilities taken from their diagram, (M1) for the addition of their products.

\( = 0.2{\text{ }}\left( {\frac{1}{5},{\text{ 20% }}} \right)\)     (A1)(ft)     (C3)

Note: Accept any equivalent correct fraction.

     Follow through from their tree diagram.

[3 marks]