Question

can someone help me with 4 questions
A bag contains 4 white, 3 blue, and 5 red marbles Find the probability of choosing a red marble, then a white marble if the marbles are replaced.

Answer 1

A 1/12
B 5/36
C 5/6
D 5/12

Answer 2

@triciaal @welshfella @hatnn

Answer 3

@SamsungFanBoy

Answer 4

\[\frac{ red-marbles }{total-marbles }*\frac{ white-marbles }{ total-marbles }\]

Answer 5

what????

Answer 6

How many red marbles are there?

Answer 7

5

Answer 8

How many total marbles?

Answer 9

12

Answer 10

So red-marbles/total-marbles would be what?

Answer 11

5/12

Answer 12

Now do the same thing with white marbles and total marbles.

Answer 13

4/12

Answer 14

which would simplify to?

Answer 15

5/6

Answer 16

How does 4/12 simplify to 5/6?

Answer 17

sorry I mean 1/12

Answer 18

How does 4/12 simplify to 1/12?

Answer 19

A 1/12
B 5/36
C 5/6
D 5/12


A 1/12
B 5/36
C 5/6
D 5/12


A 1/12
B 5/36
C 5/6
D 5/12

Answer 20

Uh, what?

Answer 21

these are the chocies to chose from

Answer 22

Ok, but let's get back to what we're working on. What does 4/12 simplify to?

Answer 23

I don't know

Answer 24

What does 4/4 equal? What does 12/4 equal?

Answer 25

4/4 = 1

Answer 26

And 12/4?

Answer 27

3

Answer 28

So \[\frac{ 4/4 }{ 12/4 }\] would be what?

Answer 29

but 1/3 is not a chioic to chose from

Answer 30

A 1/12
B 5/36
C 5/6
D 5/12

Answer 31

Ok, now we have the fractions. 5/12 and 1/3. Now multiply the fractions.

Answer 32

my calculator doesn't do fractions

Answer 33

You don't need a calculator for this. It's just\[\frac{ 5 }{ 12 }*\frac{ 1 }{ 3 }\]

Answer 34

5/36

Answer 35

And that is your answer.

Answer 36

so the answer is b 5/36 right

Answer 37

Yes, I just said so.

Answer 38

can you help me with the other 3 plz

Answer 39

I will if you tag me in a separate question.

Answer 40

using the same info A bag contains 4 white, 3 blue, and 5 red marbles Find the probability of choosing 3 blue marbles in a row if the marbles are replaced

Answer 41

@LegendarySadist

Answer 42

hello u still there

Answer 43

@LegendarySadist

Answer 44

@Loser66

Answer 45

@Loser66 and legendarsadist will u help me with the three questions plz plz

Answer 46

using the same info A bag contains 4 white, 3 blue, and 5 red marbles Find the probability of choosing 3 blue marbles in a row if the marbles are replaced

Answer 47

The probability of blue marbles is 1/4 for each time, right? (That is from \(\dfrac{blue}{total}\)

Answer 48

A 2/11
B 1/220
C 1/27
D 1/64

Answer 49

After pick it out, then replace, second time around, the situation repeats. This time, the result is exactly what it happen in the first time: 1/4

Answer 50

Third time, same

Answer 51

Hence, the final result is (1/4)*(1/4)*(1/4) = ????

Answer 52

1/64

Answer 53

yup

Answer 54

so the answer is d

Answer 55

yup