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Step2247 [10]
3 years ago
7

The table shows the relationship between the number of faculty members and the number of students at a local school. What is the

missing value?
Faculty
Students
1
17
2
34
3
51
4
?
17
68
85
102
Mathematics
1 answer:
Mrac [35]3 years ago
8 0

Answer:

ITS C I DID THE TEST TRUST ME

Step-by-step explanation:

have nice day god bless u and im pretty sure this is the answer if not then its b

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Answer: B. 461 acres

Step-by-step explanation:

Given : In an agricultural study, the average amount of corn yield is normally distributed with a mean of 185.2 bushels of corn per acre, with a standard deviation of 23.5 bushels of corn.

i.e. \mu=185.2\ \ , \ \sigma=23.5

Let x denotes the amount of corn yield.

Now, the probability that the amount of corn yield is more than 190 bushels of corn per acre.

P(x>190)=P(\dfrac{x-\mu}{\sigma}>\dfrac{190-185.2}{23.5})

[Formula : z=\dfrac{x-\mu}{\sigma}]

=P(z>0.2043)=1-P(z  [∵ P(Z>z)=1-P(Z<z)]

1-0.5809405   [using z-value calculator or table]

=0.4190595

Now, If a study included 1100 acres then the expected number to yield more than 190 bushels of corn per acre :-

0.4190595\times1100=460.96545\approx461\text{ acres}

hence, the correct answer is B. 461 acres .

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Step-by-step explanation:

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