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Omni-MATH / Sherry is waiting for a train. Every minute, there is a 75% chance that a train will arrive. However, she is engrossed in her game of sudoku, so even if a train arrives she has a …

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problem

Sherry is waiting for a train. Every minute, there is a 75%75 \% chance that a train will arrive. However, she is engrossed in her game of sudoku, so even if a train arrives she has a 75%75 \% chance of not noticing it (and hence missing the train). What is the probability that Sherry catches the train in the next five minutes?
Plain-text mathematical notation (without MathML)
Sherry is waiting for a train. Every minute, there is a 75% chance that a train will arrive. However, she is engrossed in her game of sudoku, so even if a train arrives she has a 75% chance of not noticing it (and hence missing the train). What is the probability that Sherry catches the train in the next five minutes?
Original LaTeX notation
Sherry is waiting for a train. Every minute, there is a $75 \%$ chance that a train will arrive. However, she is engrossed in her game of sudoku, so even if a train arrives she has a $75 \%$ chance of not noticing it (and hence missing the train). What is the probability that Sherry catches the train in the next five minutes?

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Source and history

task_id
e243323c-15f0-58de-89e9-3f26500e73e7
task_key
test--e243323c-15f0-58de-89e9-3f26500e73e7
task_revision_id
1
config / split
/ test

Official source

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