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Radda [10]
3 years ago
9

SOMEONE HELP ME PLEASE

Mathematics
1 answer:
allochka39001 [22]3 years ago
3 0

Answer\

X is 84 ;)

Step-by-step explanation:

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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
3 years ago
Write the equation of the line in fully simplified slope Intercept form.
andre [41]

Answer:

y = -0.83x - 2

Step-by-step explanation:

Slope intercept form is y = mx+b.

M is the slope: In this case the slope (rise/run) is 10/12. However, the slope is decreasing is that would make it negative.

Now we have: y = -0.83x + b

B represents the y-intercept. The y-intercept here is -2. So our final equation is:

y = -0.83x - 2

8 0
2 years ago
There are 218 calories in a kitcat bar. How many calories would there be in 16 kitcat bars??
attashe74 [19]

To find the answer,

multiply the amount of calories in one kit kat bar by 16

218 * 16 = ?


The final answer is 3,488 calories

6 0
3 years ago
Read 2 more answers
A person is watching a boat from the top of a lighthouse. The boat is approaching the lighthouse directly. When first noticed, t
leonid [27]
Answer: 509.17 meters
5 0
3 years ago
-7(y – 5) + 8 = -27<br> help?
katovenus [111]

Answer:

10

Step-by-step explanation:

-7y + 35 + 8 = -27

collect like terms

-7y = -27 - 35 - 8

-7y = -70

y= -70/-7

y= 10

5 0
3 years ago
Read 2 more answers
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