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Cloud [144]
3 years ago
5

I’m stuck I need help

Mathematics
1 answer:
arlik [135]3 years ago
8 0

Answer:

X=6

Step-by-step explanation:

First step isolate the variable;2x=12

Simplify;x=12/2=6

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Define the random variables X and X in words. X is the amount of time an individual waits at the courthouse to be called for ser
densk [106]

<u>Question</u>

Suppose that a committee is studying whether or not there is excessive time waste in our judicial system. It is interested in the mean amount of time individuals spend at the courthouse waiting to be called for jury duty. The committee randomly surveyed 81 people who recently served as jurors. The sample mean wait time was 4 hours with a sample standard deviation of 1.2 hours. Define the random variables X and \bar{X} in words.

Answer:

(B)

  • X is the amount of time an individual waits at the courthouse to be called for service.
  • \bar{X}  is the mean wait time for a sample of individuals.

Step-by-step explanation:

The random variable X is the amount of time for which each of the prospective juror waits at the courthouse before being called for service.

\bar{X}  is the mean wait time for a the given sample of individuals. In the case given,

5 0
2 years ago
What is the answer to: 9^-2x^-1y^0x
IrinaVladis [17]
If u wrote 9 to the power of - 2 and x to the power of - 1 and y to the power of 0 and write the x at then end it would end up a fraction of 1/81 but I'm not sure what u want like multiply?
8 0
3 years ago
Find the value of y 74 77 89 96
Morgarella [4.7K]
The external angle (53°) is half the difference of the intercepted arcs (y°, 180°), so we have
  53 = (180 - y)/2
  106 = 180 - y
  y = 180 - 106
  y = 74

The appropriate choice for the value of y is ...
  74
4 0
3 years ago
(-1) + (-6) + ____ = -1
Nastasia [14]
(-1)+(-6)= -7

-7 + 6 = -1

therefore, the answer is 6.
3 0
2 years ago
Read 2 more answers
What do these signs mean
polet [3.4K]

<em>:-) :-( ;-) :-P (^o^) ^o^ ^_^ :-! 8-) :-{ :-[ (-: </em>

<em>or</em>

<em> that is not an exercise. but still thanks for the points.</em>

<em />

8 0
3 years ago
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