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mezya [45]
3 years ago
12

What is the probability of drawing a red marble? 2/5 45% 1/3 9/11

Mathematics
2 answers:
LekaFEV [45]3 years ago
6 0

Answer:

45%

Step-by-step explanation:

Counting the marbles, there are 5 green, 6 blue and 9 red.

Which means the odds of drawing a red to a non red are 11:9

In fraction form that would be 9 marbles out of 20 are red. 9/20

Since the fraction cannot be simplified, we can go to decimal form.

9/20=.45

.45=45%

The answer is 45%.

inna [77]3 years ago
4 0

Answer:

45%

Step-by-step explanation:

Total = 20

Red = 9

9/20 = 0.45

Therefore 45 % is the correct option :))

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Answer:

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Step-by-step explanation:

<u>Given the scale factor:</u>

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Since the cylinders are similar, the other dimensions should have same scale factor of 1/3.

<u>The volumes are:</u>

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<u>Ratio of volumes is the cube of the scale factor, as the volume is the product of 3 dimensions:</u>

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The proportion of a population with a characteristic of interest is p = 0.37. What is the standard deviation of the sampling dis
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The standard deviation (SD) of a sample proportion obtained when the sample size is 1,600 is equal to 0.0121.

<h3>What is a sample proportion?</h3>

A sample proportion can be defined as the proportion of individuals in a sample that have a specified characteristic or trait.

Mathematically, sample proportion can be calculated by using this formula:

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Where:

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In Mathematics, the standard deviation (SD) of a sample proportion obtained when the sample size is 1,600 can be calculated by using this formula:

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Substituting the given parameters into the formula, we have;

Standard deviation (SD) = √(0.37(1 - 0.37)/1,600)

Standard deviation (SD) = √(0.37(0.63)/1,600)

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Standard deviation (SD) = 0.0121.

Read more on standard deviation here: brainly.com/question/14467769

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1 year ago
How to factor the algebraic expression 24a + 28
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