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Determine the probability that Samira completes at least one run.
Mathematics 0580 · IGCSE · Probability of combined events
Probability of combined events — practice question
Samira enters two charity runs. The chance that she completes each one is 0.8. A tree diagram shows: First run: completes (0.8) then Second run completes (0.8) or does not complete (0.2); First run does not complete (0.2) then Second run completes (0.8) or does not complete (0.2).