Question

Probability question

Answer 1

\(\large \color{black}{\begin{align}
& \normalsize \text{There are 5 envelopes corresponding to 5 letters .}\hspace{.33em}\\~\\
& \normalsize \text{If the letters are placed in the envelopes at random,}\hspace{.33em}\\~\\
& \normalsize \text{what is the probability that all letters are not placed}\hspace{.33em}\\~\\
& \normalsize \text{in right envelope ?}\hspace{.33em}\\~\\
& a.)\ \dfrac{119}{120} \hspace{.33em}\\~\\
& b.)\ \dfrac{59}{60} \hspace{.33em}\\~\\
& c.)\ \dfrac{23}{24} \hspace{.33em}\\~\\
& d.)\left(\dfrac{4}{5}\right)^{5} \hspace{.33em}\\~\\
\end{align}}\)

Answer 2

how many ways are there to place the letters?

Answer 3

5!

Answer 4

ok. how many ways are there to put the letters in the right envelope?

Answer 5

1

Answer 6

ok what's the chance of putting all the letters in the right envelope?

Answer 7

1/5!

Answer 8

ok. what's the chance of NOT putting all the letters in the right envelopes?

Answer 9

1-1/5!

Answer 10

and what is that equal to?

Answer 11

a.)

Answer 12

yeh

Answer 13

thnks

Answer 14

np