Discussion
The following probabilities are given; choose the correct answer for that which is not possible.
Answer: C
Every probability lies between 0 and 1 inclusive.
\[ 0 \leq P(E) \leq 1 \]
\[ 0.15 \ \checkmark \qquad \frac{2}{7} \approx 0.286 \ \checkmark \qquad \frac{7}{5} = 1.4 \ \times \]
\( \tfrac{7}{5} \) exceeds 1, so it cannot be a probability - nothing can be more certain than certain.
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