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natali 33 [55]
3 years ago
14

Click on the picture above ! Please help!

Mathematics
2 answers:
saveliy_v [14]3 years ago
5 0

Answer:

A

Step-by-step explanation:

Ira Lisetskai [31]3 years ago
5 0

Answer:

the awnser to your question is letter c

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A population of values has a normal distribution with μ = 155.4 and σ = 49.5 . You intend to draw a random sample of size n = 24
xz_007 [3.2K]

Answer:

(a) The probability that a single randomly selected value lies between 158.6 and 159.2 is 0.004.

(b) The probability that a sample mean is between 158.6 and 159.2 is 0.0411.

Step-by-step explanation:

Let the random variable <em>X</em> follow a Normal distribution with parameters <em>μ</em> = 155.4 and <em>σ</em> = 49.5.

(a)

Compute the probability that a single randomly selected value lies between 158.6 and 159.2 as follows:

P(158.6 < X

*Use a standard normal table.

Thus, the probability that a single randomly selected value lies between 158.6 and 159.2 is 0.004.

(b)

A sample of <em>n</em> = 246 is selected.

Compute the probability that a sample mean is between 158.6 and 159.2 as follows:

P(158.6 < \bar X

*Use a standard normal table.

Thus, the probability that a sample mean is between 158.6 and 159.2 is 0.0411.

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3 years ago
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katrin2010 [14]
I would try drawing the line on a coordinate plane to help.
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3 years ago
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Robert believes that the lengths 8 in, 13 in, and 20 in will form a triangle. Is he correct?
adell [148]

Answer: I think it’s D

Step-by-step explanation:

it’s because 8^2 + 13^2 equals 233 and when square rooted equals 15.26 not 20 so no.

7 0
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MATH HELP ASAP!! MARKING BRAINLIEST
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Answer:

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Step-by-step explanation:

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-2(0)-7 =0-7= -7

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