help math please

Question

help math please

anonymous · Answer

okay.. what's your question?

anonymous · Answer

is your cat not helping you? :X

thecatman · Answer

Each of the letters in the word MATHEMATICS is represented by a letter tile in a bag. Stacey picks three letters, without replacement. To the nearest whole percent, which is the probability that she'll get all vowels?

 two percent

 three percent

 five percent

 six percent

Question

thecatman · Answer

my cat is still nuts

anonymous · Answer

sorry.. i hate probability problems.. hehe. :D

thecatman · Answer

ok

amistre64 · Answer

how many vowels are there?

anonymous · Answer

@amistre64 4 vowels..

thecatman · Answer

4

amistre64 · Answer

4 vowels, how many letters total?

amistre64 · Answer

im assuming that the information is that there is that each letter in the word is a seperate tiles; and not just say one M tile to represent all the Ms

anonymous · Answer

the bag contains M A T H E M A T I C S
that is 11 letters out of which A E A I are vowels

probability = what you desire / what is there

anonymous · Answer

@amistre64 11 letters..

thecatman · Answer

11

amistre64 · Answer

then we need to run thru "without replacement"

4/11

that leaves 3 out of 10 left

3/10

that leaves 2 out of 9 left

2/9

adding them up gives the probability they seek

amistre64 · Answer

i think I meant multiply, not add

thecatman · Answer

?

anonymous · Answer

:O i made a mistake

amistre64 · Answer

the probability of getting a vowel; and another vowel; and another vowel

the "and" indicates multiplication off the 3 simple event probabilities

amistre64 · Answer

4*3*2
--------
11*10*9

anonymous · Answer

4/165 is the result in multiplying them out..

thecatman · Answer

then are you suppose to turn into a decimal

amistre64 · Answer

that depends on how the person grading the assignments wants it to be formatted

amistre64 · Answer

4/165 is a suitable value between 0 and 1

anonymous · Answer

0.0242424......

thecatman · Answer

so 2 percent

anonymous · Answer

yap. :D

amistre64 · Answer

2.43% if any degree of accuracy is desired

amistre64 · Answer

or 2.42 ... depends on how you round it

thecatman · Answer

Leander rolls a standard die twice. Which of the following compound events has the greatest chance of occurring?

 the probability of 2 and 2

 the probability of 2 and 5

 the probability of 5 and even

 the probability of even and even