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olganol [36]
3 years ago
13

Select the correct answer.

Mathematics
1 answer:
Liono4ka [1.6K]3 years ago
4 0

Answer:

Option C.

Step-by-step explanation:

It is given that,

Total number of applicants = 9

Number of job = 3

We need to select 3 applicants out of 9. So, the required number of ways is

^9P_3=\dfrac{9!}{(9-3)!}

^9P_3=\dfrac{9\times 8\times 7\times 6!}{6!}

^9P_3=9\times 8\times 7

^9P_3=504

Therefore, there are ^9P_3=504 ways the positions can be filled because the order in which the applicants are chosen matters.

Hence, the correct option is C.

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The slope of the line of best fit to the raw-score scatter plot is 0.98

  • The equation is y = 0.98x - 3.74
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<h3>How to determine the slope of the line?</h3>

From the question, we have the following parameters that can be used in our computation:

  • Standard deviations of X, Sx = 1.88
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Substitute the known values in the above equation, so, we have the following representation

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<h3>The equation of the line of best fit</h3>

A linear equation is represented as

y = bx + c

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In (a), we have

b = 0.98

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y = 0.98x + c

Recall that the point (13, 9) is on the line of best fit.

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9 = 0.98 * 13 + c

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<h3>The value of y from x</h3>

Here, we have

x = 12

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y = 0.98 x 12 - 3.74

Evaluate

y = 8.02

Read more about line of best fit at

brainly.com/question/1564293

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