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3 years ago

In a simple regression, the correlation coefficient r is the square root of r2.

Mathematics

1 answer:

marta [7]3 years ago

7 0

The answer your are looking for is true

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Which of the following is not a congruence transformation?

Hatshy [7]

The following that is not a congruence transformation is A, stretching.

6 0

3 years ago

HELPPP PLEASE!!!!

ad-work [718]

Answer: B.f(n)9n-12

Step-by-step explanation:

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3 years ago

Suppose that you are a member of this arbitration panel. Construct a 95% confidence interval for the true mean return of the inv

lisabon 2012 [21]

Answer: Margin of Error = 1.944

Lower Bound = 3.052

Explanation:-

Attached below is a file for monthly Rate of return. Used an excel sheet to determine the confidence interval which seems relatively easier as compared to manual computation. The range below (A2:A40) shows the monthly

Functions used : Standard Deviation as= STDEV (A2:A40)

Sample Mean = AVERAGE(A2:A40)

Margin of Error = CONFIDENCE.T(D4,D5,D2)

Lower Bound Interval = D6-D7 = -3.052

3 0

4 years ago

An olympic sprinter can run 56 yards in 8 seconds. At the same rate, how long (in seconds) would it take the sprinter to run 81

aniked [119]

Answer:

20,365.7 seconds

Step-by-step explanation:

First, we need to know how to convert yards to miles, as the question is in miles. We know that 1 mile is equivalent to 1760 yards. So we have:

1 mi = 1760 yards

If we multiply both sides by 81:

81 mi = 142,560‬ yards

And we know that the sprinter needs 8 second to run 56 yards:

8 s = 56 yards

If we divide both sides by 56 we get the time he needs for 1 yard:

8/56 s = 56/56 yards

1/7 s = 1 yard

So, takes him 1/7 seconds to run one yard. At this rate he runs 142,560 yards in:

(1/7) * 142,560 = 20,365.7

So, he needs 20,365.7 seconds to run 81 miles (142,560 yards)

6 0

4 years ago

Please helpp i need this doneee :((

egoroff_w [7]

Answer:

$w = \frac{5}{8}, v = \frac{21}{2}$

Step-by-step explanation:

With given information, we have $\frac{TR}{TQ} = \frac{TS}{TP}$ , so $\frac{5}{13} = \frac{3w}{3w+3}$ , which gives us $w=\frac{5}{8}$ . Meanwhile, we have $\frac{TR}{TQ}=\frac{RS}{QP}$ , so $\frac{5}{13}=\frac{10}{2v+5}$ , which gives us $v = \frac{21}{2}$ .

6 0

3 years ago