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stepladder [879]
2 years ago
15

What is the ratio then what is the value of the ration?

Mathematics
1 answer:
Alekssandra [29.7K]2 years ago
5 0

Answer:

For example, if there are eight oranges and six lemons in a bowl of fruit, then the ratio of oranges to lemons is eight to six (that is, 8∶6, which is equivalent to the ratio 4∶3).

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Blood type AB is the rarest blood type, occurring in only 4% of the population in the United States. In Australia, only 1.5% of
Naddik [55]

Answer:

There is a 27.62% probability that exactly 2 of the U.S. residents have blood type AB.

Step-by-step explanation:

For each U.S. resident, there are only two outcomes possible. Either they have blood type AB, or they do not. This means that we can solve this problem using binomial probability distribution concepts.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.\pi^{x}.(1-\pi)^{n-x}

In which C_{n,x} is the number of different combinatios of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And \pi is the probability of X happening.

In this problem, we have that:

50 U.S residents are sampled, so n = 50

4% of the U.S population has blood type AB, so p = 0.04.

What is the probability that exactly 2 of the U.S. residents have blood type AB?

This is P(X = 2). So:

P(X = x) = C_{n,x}.\pi^{x}.(1-\pi)^{n-x}

P(X = 2) = C_{50,2}.(0.04)^{2}.(0.96)^{48} = 0.2762

There is a 27.62% probability that exactly 2 of the U.S. residents have blood type AB.

5 0
3 years ago
Help plz idk okhehehehehe​
TiliK225 [7]
That is the answer for the first one

6 0
2 years ago
Help me plz and thank you
Kay [80]
The second one - 6/21
3 0
3 years ago
How many nanometers in 66cm
makvit [3.9K]
66cm is equal to 6.6e+8 nanometers.
4 0
3 years ago
M+ 2/3=1/4m- <br><br>what the value of ​
Elena L [17]

Answer:

Step-by-step explanation:

subtract m from both sides and you get - 3/4m

divide 2/3 divided by -3/4

-8/9

7 0
3 years ago
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