# S5 2003 2 Edexcel

Identical to S5 January 2006 4 Edexcel with slightly different numbers.

(ai)

\displaystyle \mathrm P(X = 8) = \binom {8 - 1} {2 - 1} (0.12)^2 (1 - 0.12)^6 = 0.0468 \text { (4dp)}

(aii)

Instead equal to \dfrac 3 {0.12} = 25

(b)

Unchanged