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raketka [301]
3 years ago
5

100 POINTS

Biology
1 answer:
Helen [10]3 years ago
6 0
It’s very confusing sorry for that
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Pure water has a pH of 7, while acidic solutions will ALWAYS have a pH lower that 7. ~Your Welcome 
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Glucose molecules bond together in a process known as dehydration synthesis. What happens in this process?.
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2 years ago
PLEASE NO LINKS
Annette [7]

Considering the definition of probability, the correct answer is third option: the approximate probability of a moth being brown and yellow respectively is 33% and 21%

Probability is the greater or lesser possibility of a certain event occurring.

In other words, probability establishes a relationship between the number of favorable events and the total number of possible events.

Then, the probability of any event A is defined as the quotient between the number of favorable cases (number of cases in which event A may or may not occur) and the total number of possible cases. This is called Laplace's Law.

P(A)=\frac{number of favorable cases}{total number of possible cases}

In this case, you know that in a moth population, 48 are brown, 30 are yellow, and 67 are black. So, the total number of possible cases is calculated as:

total number of possible cases= 48 + 30 + 67= 145

The number of favorable cases for a moth to be brown is: 48

Then the probability that a moth is brown is calculated as:

P(A)=\frac{48}{145}= 0.33= 33%

On the other side, the number of favorable cases for a moth to be yellow is: 30

Then the probability that a moth is yellow is calculated as:

P(A)=\frac{30}{145}= 0.21= 21%

In summary, the correct answer is third option: the approximate probability of a moth being brown and yellow respectively is 33% and 21%

Learn more about probability:

  • brainly.com/question/23297275?referrer=searchResults
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2 years ago
Which of the following are copied from DNA?
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MRNA is copied from DNA
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