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jolli1 [7]
3 years ago
11

Why do scientists prefer the metric system (meters, grams, etc?

Mathematics
1 answer:
nirvana33 [79]3 years ago
4 0
Everything is counted by 10's, so it's less of a chance of errors.
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 Because the pattern is a Geometric sequence.
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Log3 27=3x+6 solve<br> this please
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Suppose we have an unfair coin that its head is twice as likely to occur as its tail. a)If the coin is flipped 3 times, what is
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Answer: a) 0.2222, b) 0.3292, c) 0.1111

Step-by-step explanation:

Since we have given that

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Since,  its head is twice as likely to occur as its tail.

p+\dfrac{p}{2}=1\\\\\dfrac{3p}{2}=1\\\\p=\dfrac{2}{3}

a)If the coin is flipped 3 times, what is the probability of getting exactly 1 head?

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q=\dfrac{1}{3}

Now,

P(X=1)=^3C_1(\dfrac{2}{3})^1(\dfrac{1}{3})^2=0.2222

b)If the coin is flipped 5 times, what is the probability of getting exactly 2 tails?

2 tails means 3 heads.

So, it becomes,

P(X=3)=^5C_3(\dfrac{2}{3})^3(\dfrac{1}{3})^2=0.3292

c)If the coin is flipped 4 times, what is the probability of getting at least 3 tails?

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8 0
3 years ago
Is this right or wrong let me know
Montano1993 [528]

Answer:

thats right!

Step-by-step explanation:

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