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sdas [7]
2 years ago
4

An urn contains 1 green ball, 1 red ball, 1 yellow ball and 1 white ball. I draw 4 balls with replacement. What is the probabili

ty that there is at least one color that is repeated exactly twice?
Mathematics
1 answer:
zubka84 [21]2 years ago
4 0

Answer:

Probability P(getting exactly 1 colour repeated twice) = 1/128

Step-by-step explanation:

Green ball=1, red ball = 1 , Blue ball=1 , yellow ball =1

Assuming the two colours are green balls

P(Green ball)= 1/4

P( green ball)= 1/4

P( blue ball)= 1/4

P(yellow or white)= 2/4

P(getting exactly 1 colour repeated twice)= 1/4 ×1/4 ×1/4 ×2/4 = 2/256 =1/128

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luda_lava [24]

Answer:

11%

Step-by-step explanation:

it is a simple question, whenever you need to find % increase or % decrease.

always divide the increase as in this case $2 by the original amount which is $18 and multiply it by 100 as you need to take the %.

so,

2/18*100 gives you 11.11%      * is multiply  

8 0
2 years ago
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To test the age old question if talking to plants helps them grow, horticulturists obtained 24 heirloom tomatoes. From each toma
vlada-n [284]

Answer:

Option D

Step-by-step explanation:

The null hypothesis: ∪ = 0; they do not grow after conversation

the alternative hypothesis : ∪ ≠ 0; they grow after conversation

Based on the question asked and the results given which is:

Based on the t-test statistic and p-value, researchers found moderate evidence against the null hypothesis. Give the final statement of the hypothesis test.

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3 0
2 years ago
In a random sample of 130 students, only 7 had been placed in the wrong math class. What is the best point estimate for the prop
Ivenika [448]
We have the given  in the problem as mentioned:
A total of 130 students and only 7 had been placed in the wrong math class.
With this given, we can easily draw the proportion of all students who have been placed in the wrong math class by estimation method and the solution is shown below:

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5 0
2 years ago
This chart shows what happens when each object is placed on a balance with a 10 kg weight on the other side.
dexar [7]

9514 1404 393

Answer:

  Object 1 is the heaviest object.

Step-by-step explanation:

The first column of the table tells you ...

  Object 1 is heavier than the 10 kg weight

The second column of the table tells you ...

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The third column of the table tells you ...

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Then the relative weights are ...

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8 0
2 years ago
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Solve the following inequality: 38 < 4x + 3 + 7 – 3x.
DochEvi [55]
38 < 4x + 3 +7 - 3x (original equation)
38 < 4x - 3x + 3 + 7 (combine like terms)
38 < x + 10 (simplify)
38 - 10 < x + 10 - 10 (subtract 10 from both sides to get (x) alone)
28 < x (simplify)
x > 28 (switch to get x on the left (its proper equation writing >.<) ) 
7 0
2 years ago
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