Saturday

January 31, 2015

January 31, 2015

Posted by **John** on Wednesday, March 3, 2010 at 5:32pm.

- Statistics -
**Reiny**, Wednesday, March 3, 2010 at 6:09pmI will do the 2 vowels for you

since she grabbed 3 letters it could have been

VVC, VCV, or CVV

look at the first, the VVC

there are 3 vowels out of 9 prob (first a vowel) = 3/9

so now there are 8 letters left, 2 of them vowels

prob (second a vowel) = 2/8

so now the third letter must be a consonant, and there are 7 letters left, 6 of them consonants.

Prob(third is a consonant) = 6/7

so

Prob(first a vowel, 2nd a vowel, third a cons) = 3/9 x 2/8 x 6/7

now can you see how she would get the VCV of

3/9 x 6/8 x 2/7 setup ?

and for the CVV it would be 6/9 x 3/8 x 2/7

did you notice that the numerators are simply

2x3x6 and the denominators are 9x8x7 just in different order?

Does it matter what order you do multiplication?

so the prob would be

(3/9*2/8*6/7)(3/9*2/8*6/7)(3/9*2/8*6/7)3

=(3/9*2/8*6/7)^3

Now see if you reason out the others in the same way.

**Answer this Question**

**Related Questions**

math - I hope i am on the right track. Please look at my answer so I am doing ...

math - ASAP ASAP if my name is Frances 1.What fraction of the letters in my name...

Geometry - To name each figure below, use as many of the letters A, B, C,...as ...

Data Management Grade 12 - How many different five-letter words can be formed ...

finite - In how many ways can the letters in Saskatchewan be rearranged and ...

Math - 29.There are 16 boys and 12 girls in Kelly's class.Her teacher wrote the ...

.... - p w s a f m i x copy the letters above on a piece of paper. cross out the...

Math - Allison has a set of letter block each block is a unit cube. What is the ...

Finance - Can anyone offer help to me by explaining how I can answer this ...

Lab Equipment - What is a square mesh with a fiber center used for support? 9 ...