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chubhunter [2.5K]
3 years ago
14

What is a ratiocan someone give me more than one answer please for this question​

Mathematics
1 answer:
Ymorist [56]3 years ago
7 0
The number relation that is between two amounts.
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2 years ago
The random variable X is exponentially distributed, where X represents the waiting time to be seated at a restaurant during the
erastova [34]

Answer:

The probability that the wait time is greater than 14 minutes  is 0.4786.

Step-by-step explanation:

The random variable <em>X</em> is defined as the waiting time to be seated at a restaurant during the evening.

The average waiting time is, <em>β</em> = 19 minutes.

The random variable <em>X</em> follows an Exponential distribution with parameter \lambda=\frac{1}{\beta}=\frac{1}{19}.

The probability distribution function of <em>X</em> is:

f(x)=\lambda e^{-\lambda x};\ x=0,1,2,3...

Compute the value of the event (<em>X</em> > 14) as follows:

P(X>14)=\int\limits^{\infty}_{14} {\lambda e^{-\lambda x}} \, dx=\lambda \int\limits^{\infty}_{14} {e^{-\lambda x}} \, dx\\=\lambda |\frac{e^{-\lambda x}}{-\lambda}|^{\infty}_{14}=e^{-\frac{1}{19} \times14}-0\\=0.4786

Thus, the probability that the wait time is greater than 14 minutes  is 0.4786.

7 0
2 years ago
Help me please <br>im also very tried right now so please help​
Molodets [167]
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2 years ago
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Answer:

ummmm....

Step-by-step explanation:

9/10 , 0.99 , 19/20 , 9%

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3 years ago
How do Helen's feelings about breaking the doll change after she realizes that
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Answer:

The answer is A

Explanation:

At first she is very happy holding the broken pieces of the doll but after learning it has a specific name she feels sorrow and regret

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