Probability/Statistics

A secretary addresses 50 different letters and envelopes to 50 different people, but the letters are randomly mixed before being put into envelopes. What is the probability that at least one letter gets into the correct envelope?

1. 👍
2. 👎
3. 👁
1. .632

1. 👍
2. 👎

Similar Questions

1. math

How many 6-letter words can be made from the letters WASTEFUL if repetition of letters is allowed?

2. geometry

In the English alphabet, there are 7 capital letters that look the same after being rotated 180∘. Those letters are H, I, N, O, S, X, and Z. How many different 3 letter "words" can be made from these letters such that when the

3. Stat

If radio station call letters must begin with either K or W and must include either two or three additional​ letters, how many different possibilities are​ there?

4. math

Suppose a code consist of two letters followed by a digit. Find the number of (a) Codes (b) Codes with distinct letters (c) Codes with the same letters

1. ....

p w s a f m i x copy the letters above on a piece of paper. cross out the second and last letters. replace all vowels with letters. double the second letter which letter sequence remains on your page? a. ssfmoi b.cffmmc c.sffmoc

2. math

License plates consist of letters and/ or digits. Calculate the number of licence plates that could be formed in each province or territory. Assume all numbers and letters are possible. a) Ontario, with 4 letters followed by 3

3. Math

Radio stations use three or four letters for their call letters(name). The first letter must be a W or K. How many different call letters are possible if repeated letters are allowed? And not allowed?

4. Math

A beverage company puts one of the letters in the word MATH under each bottle cap. A prize is given to each person who collects all the letters. Which of the following could be used as a simulation for how many bottles it would

How many ways can an IRS auditor select 3 of 11 tax returns for an audit? There are 8 members on a board of directors. If they must form a subcommittee of 3 members, how many different subcommittees are possible? License plates

2. math

Ann replaces letters in the calculation KCB + RA - TOO with some of the numbers from 1 to 9 and then calculates the result. The same letters are replaced by the same numbers and different letters by different numbers. What is the

3. Lab Equipment

What is a square mesh with a fiber center used for support? 9 letters, ends with an E What is a porcelain container used to heat things? 8 letters, second letter is "R" What type of bottle is used for storing acids and bases? 7

4. English

The only acceptable way to divide words at the end of a line is: A. to let the computer decide. B. before the last three letters. C. between syllables. D. after the first three letters. C