Question

Find the number of distinguishable permutations of the letters LUCKY?

Answer 1

There are 5 letters, so there are 5! permutations


Keep in mind something like 7! means 7! = 7*6*5*4*3*2*1 = 5040

Answer 2

ohhh! wow thank you!! <3

Answer 3

could you help me with few other problems? :)

Answer 4

sure

Answer 5

A six - sided die is rolled. Find the probability of obtaining a number other than 10.

Answer 6

wait, is there one die or two dice here?

Answer 7

one:)

Answer 8

so it's 1 (which signifies 100%) since the numbers 1 through 6 are not 10.

Answer 9

okay! thanks!! :) 2 more problems please?

Answer 10

sure go ahead

Answer 11

A bag contains 2 white marbles, and 1 blue marble. The marbles are randomly selected one at a time. What are the odds of picking the blue marble at the first selection?

Answer 12

how many blue marbles are there

Answer 13

one

Answer 14

how many total?

Answer 15

3

Answer 16

so the probability is (# of blue)/(# total) = 1/3

Answer 17

Ohh! Oki & the last one;

Answer 18

10 balls numbered from 1-10 are placed in an urn. One ball is selected at a random. Find the probability that it is Not #9.

Answer 19

How many balls aren't #9?

Answer 20

1?

Answer 21

are NOT #9

Answer 22

there's one ball that's #9, so how many aren't?

Answer 23

9

Answer 24

good, how many total?

Answer 25

10

Answer 26

9/10 ?

Answer 27

so the probability is 9/10

Answer 28

you nailed it

Answer 29

thank you! :))

Answer 30

you're welcome

Answer 31

and can u check something for me?

Answer 32

sure thing

Answer 33

8 balls numbered from 1-8 are placed in an urn. If 1 ball is selected at a random, find a probability thats not #7.

So it would be; 6/8 ?

Answer 34

close

Answer 35

There are 8 balls total right?

Answer 36

yes

Answer 37

There is only one ball that's #7, correct?

Answer 38

i think so, or is it like one ball is selected at one time?

Answer 39

yes we're only selecting one ball

Answer 40

So there are 8 - 1 = 7 balls that aren't #7

Answer 41

7/8 ?

Answer 42

you got it

Answer 43

thanks! :))

Answer 44

you're welcome