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frutty [35]
3 years ago
5

A marble is drawn at random from the bag. The bag contains 3 green, 4 yellow, 5 blue, and 8 pink marbles. What is the probabilit

y that the marble drawn is a green or blue? Type a numerical answer in the space provided. Use the / key to represent the fraction bar. Do not type spaces in your answer.
Mathematics
1 answer:
ZanzabumX [31]3 years ago
3 0
Add them all together: 3 + 4 + 5 + 8 = 20

Add green and blue: 5 + 3 = 8 

8/20 

Simplify this, and you will have 2/5 


Hope I could help! Let me know if there is anything else you need! 

p.s. Brainliest? I am trying to get to higher ranks and it would really help :)
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Probability that no samples are mutated is 0.83, probability that at most one sample is mutated is 0.9812 and probability that more than half the samples are mutated is 0.

Given percentage of rejuvenated mitochondria defective is 1%, and sample size is 18.

Binomial distribution is the probability of exactly x successes on n repeated trials and X can have two outcomes.

P(X=x)=C_{n,x} p^{x}(1-p)^{n-x}

percentage of defective rejuvendated mitochondria=1%

p=0.01

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n=18

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This means P(X=0)=C_{18,0}(0.01)^{0} (0.99)^{18}

=0.83

b) At most one sample is mutated.

P(X<=1)=P(X=0)+P(X=1)

so,

P(X=0)=C_{18,0} (0.01)^{0}  (0.99)^{18}

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P(X=1)=C_{18,1}(0.01)^{1} (0.99)^{17}=

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c) More than half the samples are mutated.

P(X>9)=P(X=10)+P(X=11)+P(X=12)+P(X=13)+P(X=14)+P(X=15)+P(X=16)+P(X=17)+P(X=18)

Using two decimals digits precision all will be 0.

Hence Probability that no samples are mutated is 0.83, probability that at most one sample is mutated is 0.9812 and probability that more than half the samples are mutated is 0.

Learn more about probability at brainly.com/question/24756209

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