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arlik [135]
3 years ago
14

4. Five marbles are randomly selected with replacement. The probability that a black marble is chosen is 15%.

Mathematics
1 answer:
STatiana [176]3 years ago
6 0
Answer: You have a 16.49% percent chance of having at least 2 black marbles.

This is an example of a binomial distribution. We have an event (drawing a black marble) that is only 15% likely. Out of 5 chances, we need to determine the likelihood that this occurs at least two time.

You can look up these values on a Binomial Distribution table.

We had to add up the percents for drawing 2, 3, 4, or 5 black marbles.

2 - 0.1382
3 - 0.0244 
4 - 0.0022
5 - 0.0001

Adding up these values gives us 0.1649.
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What are “like terms”? Why can we only add like terms?
SSSSS [86.1K]

Answer:

Like terms are terms whose variables are the same.

We can only add them because if they does not have the same variable you do not actually know if the variables are equivalent and you will get the wrong answer.

Step-by-step explanation:

Ex: 4z,7z,108z,45z

Ex: 4w-2h+7a-2w

You can not add 4w and 7a because you do not know what the variables equal so you do not know the true number so add or subtract by.


4 0
3 years ago
Which of these is not a possible r-value?
Scorpion4ik [409]

Answer:b 1.2

Step-by-step explanation:

5 0
2 years ago
This is important please help
Leya [2.2K]

Answer: C

<u>Step-by-step explanation:</u>

∑ 8(\frac{7}{3})⁽ⁿ⁻¹⁾ from n = 1 to n = 5

n = 1 → 8(\frac{7}{3})⁽¹⁻¹⁾

        = 8                                         = \frac{648}{81}

n = 2 → 8(\frac{7}{3})⁽²⁻¹⁾

         = \frac{56}{3}                                         = \frac{1512}{81}    

n = 3 → 8(\frac{7}{3})⁽³⁻¹⁾

          = \frac{392}{9}                                     = \frac{3528}{81}

n = 4 → 8(\frac{7}{3})⁽⁴⁻¹⁾

          = \frac{2744}{27}                                 = \frac{8232}{81}

n = 5 → 8(\frac{7}{3})⁽⁵⁻¹⁾

          = \frac{19208}{81}                                = \frac{19208}{81}

                                                                            Sum = \frac{33128}{81}

                                                                                    = 408.99

     

6 0
2 years ago
HELPPPPP PLSSSSSSSSSSSSSSSSSSSS! :( Roller Coaster Crew
pochemuha

Answer:

g (x)=g(-1)

g(x)=g(2)

g(x)=g(-3)

g(x)=g(2)

g(x)=g(7)

5 0
3 years ago
A triangle has sides of lengths 8, 15, and 17. Is it a right triangle? Explain.
8_murik_8 [283]

Answer:

yes it does

17 is the longest side.

Iff  Iff 17%5E2+=+8%5E2+%2B+15%5E2 it's a right triangle.  it's a right triangle.

Ps "iff" means if and only if

hope it helps

if so please mark me  as brainliest

3 0
3 years ago
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