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After the typist writes 12 letters and addresses 12 envelopes, she inserts the letters randomly into the envelopes (1 letter per envelope). What is the probability that exactly 1 letter is inserted in an improper envelope?

After the typist writes 12 letters and addresses 12 envelopes, she inserts the letters randomly into the envelopes (1 letter per envelope). What is the probability that exactly 1 letter is inserted in an improper envelope?

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1 Answers

SAGAR SINGH - IIT DELHI
879 Points
11 years ago

Dear student,

Answer is 0.
we cannot send exactly 1 letter.

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Sagar Singh

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