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MrRissso [65]
3 years ago
7

Find a value of the standard normal random variable Z, Call it Z0, such that

Mathematics
1 answer:
IRISSAK [1]3 years ago
8 0
The answer is C hope this helped you out
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Lol help lol okeasey
Georgia [21]

Answer:

1.75

Step-by-step explanation:

8 0
3 years ago
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The rate at which customers are served at an airport check-in counter is a Poisson process with a rate of 8.1 per hour. The prob
just olya [345]

Answer:

Value of a is 0.667                      

Step-by-step explanation:

We are given the following in the question:

The rate of customer at an airport follows a Poisson distribution with

\lambda = 8.1

The normal approximation of Poisson distribution can be done in the following manner

\mu = \lambda = 8.1\\\sigma^2 = \lambda = 8.1\\\sigma = \sqrt{8.1} = 2.85

Formula:

z_{score} = \displaystyle\frac{x-\mu}{\sigma}

We have to find the value of a such that

P(X_p > 50)=P(Z > a)

More than 50 customers per 5 hours means more than 10 customer per hour.

Thus, we can write

P( x > 10) = P( z > \displaystyle\frac{10 - 8.1}{2.85}) = P(z > 0.667)

Therefore, value of a is 0.667

4 0
3 years ago
Rewrite the expression in the form z".<br> 3
vivado [14]

Answer:

z^{\frac{1}{3}}

Step-by-step explanation:

\frac{z^{-\frac{1}{3} }}{z^{-\frac{5}{6} }} \\\\=z^{-\frac{1}{3} }*z^{\frac{5}{6} }\\\\=z^{-1/3+5/6}\\\\=z^{-2/6+5/6}\\\\=z^{3/6}\\\\=z^{1/3}\\\\=z^{\frac{1}{3} }

5 0
3 years ago
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You bought one skirt at $18.27, two shirts at $15.78, and a pair of shoes at $34.50. if the tax rate is 7%, what is the total co
Ludmilka [50]
I believe the answer to that problem would be $68.55, since you have to add them together and then multiply them by .07 for the percentage. 
6 0
3 years ago
Please help :( <br><br> Find the volume of the composite figure shown.
Allushta [10]

Answer:

Ello, estoy aquí para ayudar, pero hablo español, con suerte, entenderás que lo estoy intentando.

56738w7421098548091672949123749279102!

Step-by-step explanation:

8 0
3 years ago
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