Question

Suppose that 7 thank-you notes are written and 7 envelopes are addressed. Accidentally, the notes are randomly inserted into the envelopes and mailed without checking the addresses. What is the probability that all the notes will be inserted into the correct envelopes? The probability is (Type an integer or decimal rounded to six decimal places as needed.)

          Suppose that 7 thank-you notes are written and 7 envelopes are addressed. Accidentally, the notes are randomly inserted into the envelopes and mailed without checking the addresses. What is the probability that all the notes will be inserted into the correct envelopes?
The probability is
(Type an integer or decimal rounded to six decimal places as needed.)

Suppose that 7 thank-you notes are written and 7 envelopes are addressed. Accidentally, the notes are randomly inserted into the envelopes and mailed without checking the addresses. What is the probability that all the notes will be inserted into the correct envelopes?
The probability is
(Type an integer or decimal rounded to six decimal places as needed.)

Added by Jerry R.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert Christopher Dzorkpata

11/24/2022

Step 1

The total number of ways to insert the notes into the envelopes is n!, which is the factorial of n (n*(n-1)*(n-2)*...*3*2*1). The number of ways to insert the notes into the correct envelopes is 1, because there is only one correct arrangement. Show more…

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Suppose that 7 thank-you notes are written and 7 envelopes are addressed. Accidentally, the notes are randomly inserted into the envelopes and mailed without checking the addresses. What is the probability that all the notes will be inserted into the correct envelopes? The probability is (Type an integer or decimal rounded to six decimal places as needed.)