Question

question is attached...

Answer 1

@AwesomeB @ybarrap

Answer 2

http://assets.openstudy.com/updates/attachments/51f2c8b6e4b00daf471bb6f2-music101-1374865608335-conditionalprobabilityq..rtf

Answer 3

It did the same thing :(

Answer 4

even though I change the name, it's still an "rtf"

Answer 5

@MROAKS1432

Answer 6

what abt now

Answer 7

Still the same

Answer 8

what how?

Answer 9

Lol maybe it is my computer let me see

Answer 10

@ybarrap can u see it

Answer 11

@primeralph

Answer 12

D: D:

Answer 13

yes, can see it now

Answer 14

ok.

Answer 15

when they say that the sum of the dice is odd, it means that in every coordinate, the x and y should add up to be a odd # right?

Answer 16

is it B? cuz I kinda seems like it..

Answer 17

So two random outcomes are {2,3} and {3,6} and this would be different than {3,2} and {6,3}, because we care about order.
The type of events we're looking for are where these two numbers sum to an odd number AND one of them is a 3. So think about all possibilities where one is 3 and the second adds to give an odd number, such as {3,2} or {6,3}. You should now be able to pick out the other possibilities.

Answer 18

*it

Answer 19

id say it is b because it is the onlyone that clearly makes sence

Answer 20

yeah, that's why I asked if it was B.

Answer 21

is it B then? @ ybarrap? cuz it seems like the only one to fit the description..

Answer 22

yes

Answer 23

be is correct

Answer 24

is it C?

Answer 25

it is A

Answer 26

A??

Answer 27

90/(90+70+40)

Answer 28

I thought it was 90/300??

Answer 29

@ybarrap cuz ur saying that it's 0.45

Answer 30

You are given that they received the shot, so your new sample space is just the 1st row.

Answer 31

Of that row, those that are 55+ is .45

Answer 32

ok so its 90/200, which is 0.45?

Answer 33

D

Answer 34

yes

Answer 35

The information about flu shots is relevant, because it eliminates the possibility that a random person chose will not have had her flu shot, so 300 in denominator (ie sample space) is too high

Answer 36

oh ok.

Answer 37

Which choice correctly expresses the probability of the following?

"What is the probability that I will ace this quiz? I mean, I did study awfully hard for it."

A. P(I ace the quiz) | P(I studied hard)
B. P(I ace the quiz and I studied hard)
C. I ace the quiz | I studied hard
D. I ace the quiz and I studied hard
E. P(I ace the quiz | I studied hard)

Answer 38

ive already asked this but I need to check one more time

Answer 39

E?

Answer 40

yes

Answer 41

I have to assume you studied hard, because you said so and E is the right measure give that fact

Answer 42

yea

Answer 43

You can exclude C and D because they aren't probabilities and A doesn't make sense. B is smaller than the probability of you acing the test because it intersects with another set.

Answer 44

next:

You roll a red die and a green die. What is the size of the sample space of all possible outcomes of rolling these two dice, given that the red die shows a prime number?

Answer 45

A.12
B. 9
C. 6
D. 18
E. 24

Answer 46

What are the number of ways a single die can be prime?

Answer 47

I don't get how u solve this :/

Answer 48

?

Answer 49

What are primes?

Answer 50

numbers that can be divided evenly only by 1 or itself

Answer 51

so what are they for a single die. Of 1-6, which are prime?

Answer 52

2,3,5

Answer 53

Plus the only even prime, 2

Answer 54

What are the restrictions for the other die? That is, of 1-6, what can IT be?

Answer 55

(sorry, I didn't see your 2 earlier)

Answer 56

red die has 3 possibilities, how many does green have?

Answer 57

3?

Answer 58

green?

Answer 59

Green can be prime or not prime, there were no restrictions

Answer 60

oh ok so 6

Answer 61

right

Answer 62

So if you have 3 forks and 6 spoons, how many different ways can you arrange them (fork on one side, spoon on the other) -- this is the same for our problem

Answer 63

18?

Answer 64

yes

Answer 65

ok so D. :) thanks again

Answer 66

NP

Answer 67

You flip three coins. What is the probability that you get at least two heads, given that you get at least one head?

Answer 68

A. 4/7
B. 5/8
C. 1/2
D. 3/8
E. 3/7

Answer 69

@AwesomeB

Answer 70

did u actually solve that?

Answer 71

So @music101 the answer would be?

Answer 72

T= tails
H= heads

Answer 73

4/7?

Answer 74

A

Answer 75

is tht rite

Answer 76

yes that is what I got

Answer 77

Wait
The answer could actually be 1/2

Answer 78

50% because now that you have flip a coin two more times, you can get

Tail Tail
Head Head
Head Tail
Tail Head

You need Head Tail or Tail Head. it is 2 out of the 4 possible. So it would be C. 1/2 =50%

Answer 79

@music101 the correct answer would be C.

Answer 80

...... :( :(

Answer 81

already submitted it.....

Answer 82

You roll a red die and a green die. What is the size of the sample space of all possible outcomes of rolling these two dice

Answer 83

What happend? :( Is this for FLVS?

Answer 84

can u at least help me get the right answer for this one??

Answer 85

Any choices?

Answer 86

no it was my second time going through these problems.. and whenever i log on for the 2nd time, its like a timed question.. so i guess its wrong now...

Answer 87

A. 12
B. 6
C. 9
D. 18
E. 36

Answer 88

is it E?

Answer 89

No I got C.
Brb

Answer 90

C ?

Answer 91

@mary.rojas