Hi, I just need people to check my work.(adsbygoogle = window.adsbygoogle || []).push({});

1.

a) Determine the number of ways to arrange the letters in the wordBOOKKEEPER.

I did [tex]\frac{10!}{2!2!3!}[/tex]

which is 151200.

b) Determine the number of ways to arrange the letters in the wordBOOKKEEPERif you select at most 3.

I did [tex]\frac{10P_3}{2!2!3!}[/tex]

which is 30.

c) Determine the number of ways to arrange the letters in the wordBOOKKEEPERif you select only 5.

I did [tex]\frac{10C_5}{2!2!3!}[/tex]

which is 10.5.

I know c) can't be a decimel.

**Physics Forums | Science Articles, Homework Help, Discussion**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Problem Solving with Probability

**Physics Forums | Science Articles, Homework Help, Discussion**