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GenaCL600 [577]
3 years ago
13

The U.S. Census Bureau conducts a study to determine the time needed to complete the shortform. The Bureau surveys 200 people. T

he sample mean is 8.2 minutes. There is a knownstandard deviation of 2.2 minutes. The population distribution is assumed to be normal.Identify the following:x¯= _____σ= _____n= _____
Mathematics
1 answer:
pychu [463]3 years ago
8 0

Answer:

Step-by-step explanation:

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The 82nd term for the sequence would be -4
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Please help, I will give brainliest if you answer.
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Answer:

so required angles are 50.7°and 129.3°

Step-by-step explanation:

Let the angle be x

another angle = x + 78.6°

so,

x + x + 78.6° = 180° {being sum of supplementary angle}

so, 2x + 78.6° = 180°

or, 2x = 180° - 78.6°

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so, x = 50.7°

so another angle = x + 78.6°

= 50.7° + 78.6°

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Answer: 80%

Step-by-step explanation:

10×8

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The amount of time that a customer waits on hold at a call center can be modeled by a uniform distribution on the interval from
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Using the uniform distribution, we have that:

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-----------------

The uniform distribution has two bounds, a and b, and the probability of finding a value between c and d is given by:

P(c \leq X \leq d) = \frac{d - c}{b - a}

  • Uniform distribution on the interval of 0 to 120 seconds, thus a = 0, b = 120.

The proportion between 100 and 120 seconds is:

P(100 \leq X \leq 120) = \frac{120 - 100}{120 - 0} = \frac{1}{6} = 0.1667

0.1667*100% = 16.67%

16.67% of the time does a customer have to wait between 100 and 120 seconds.

A similar problem is given at brainly.com/question/15855314

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Sin<br><br>sin 70°/cos20°+cosec36°/sec54°-2cos43°cosec47°<br>HELP PLEASS FAST​
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Answer:

-2.59x10^15

Step-by-step explanation:

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