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sattari [20]
2 years ago
8

There are 6 blue, 4 green marbles, and 2 red marbles. You choose 2 marbles. What is the chance that they will be blue?

Mathematics
2 answers:
nata0808 [166]2 years ago
4 0

Answer:

Step-by-step explanation:

first there are 12 marbles: odds are 2/12 = 1/6

Then, there are 11 marbles: odds are 1/11

So the odds of both of them being blue are: 1/6 * 1/11 = 0.0152

Please give brainliest thanks!

Papessa [141]2 years ago
3 0

Answer:

Cause there are more blue marbles than green and red marbles

Heres you answerrrr!!

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Simulate the rolling of two dice 10,000 times. (b) Identify which rolls of the dice are in the event A, the dice add up to a per
dexar [7]

Answer:

Answer explained below

Step-by-step explanation:

(a)

Simulate the rolling of two dice 10,000 times D1 and D2 are the 10,000 results of roll of dice 1 and dice 2.

D1 = sample(c(1:6), 10000, replace = TRUE)

D2 = sample(c(1:6), 10000, replace = TRUE)

Sum = D1 + D2

(b)

The event A, the dice add up to a perfect square (4 or 9).

A = Sum[Sum == 4 | Sum ==9]

Proportion of A, P(A) = 0.189

length(A) / length(Sum)

(c)

The event B, the dice add up to an even number.

B = Sum[Sum %% 2 == 0]

Proportion of B, P(B) = 0.5049

length(B) / length(Sum)

(d)

The  rolls are in A ∩ B (common to both A and B)

> intersect(A,B)

[1] 4

The proportion that are in A ∩ B is 0.0792

length(Sum[Sum == 4]) / length(Sum)

P(A) * P(B) = 0.189 * 0.5049 = 0.0954

The proportion in A multiplied by the proportion that are in B is not equal to P(A ∩ B)

(e)

Of the rolls in which B occurs, the proportion of those rolls are also in A is 0.4190476

length(Sum[Sum == 4]) / length(A)

This proportion is greater than the P(A) calculated in part (b).

4 0
3 years ago
Please Help With all 3! Will Give 100 Points + Brainliest!
koban [17]

Answer: I don't see anything. Maybe upload some images?

Step-by-step explanation:

3 0
2 years ago
Graph the line with slope 3/2 and y-intercept 3. ​
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Answer:

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Step-by-step explanation:

8 0
2 years ago
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5 0
2 years ago
26/x=-13 <br> I need a false answer and what it would equil
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Correct answer:
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if you need a false answer, make up any number!
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