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The probabilities that a typist will mak...

The probabilities that a typist will make 0, 1, 2, 3, 4 and 5 or more mistakes in typing a report are respectively, 0.12, 0.25, 0.36, 0.14, 0.08 and 0.11.

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To determine whether the given probabilities for the typist's mistakes are valid, we need to check if the sum of all the probabilities equals 1. ### Step-by-Step Solution: 1. **List the Given Probabilities**: - Probability of 0 mistakes (P(0)) = 0.12 - Probability of 1 mistake (P(1)) = 0.25 - Probability of 2 mistakes (P(2)) = 0.36 ...
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