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klemol [59]
3 years ago
9

Which answer is the best estimate of the correlation coefficient for the variables in the scatter plot?

Mathematics
2 answers:
Vesnalui [34]3 years ago
6 0
Its Letter B -0.5

negative because its slope is negative (from left to right it's going downward)

so there are 2 negavite numbers in the choices, -0.5 and -0.95.

The nearer the value to 1 the less scatter it is. The farther the value to 1 (means nearer to 0) the more scatter it is. Because the plot in the picture is mostly scattered the value should be nearer to 0. It is negative 0.5.
Snowcat [4.5K]3 years ago
4 0
The answer is 'B'

hope this helps
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Eight rooks are placed randomly on a chess board. What is the probability that none of the rooks can capture any of the other ro
Brums [2.3K]

Answer:

9.11*10^-4 %

Step-by-step explanation:

To find the probability, you simply need to find the possible outcomes that allows no rooks to be in danger, and the possible amount of ways to place the rooks.

For the first outcome, you start by putting 1 rook in the first columns, you have 8 possible rows to do this. The next rook in the next column will only have 7 possible rows, as you have to exclude the one where the previous rook is located. The next rook, 6 possibilities, the next 5, and so on. So we conclude that the total amount of ways so that none of the rooks can capture any of the other rooks is 8*7*6*5*4*3*2*1 = 8! = 40320

In order to find the total amount of ways to place the rooks, you can just use a combinatoric:

\left[\begin{array}{ccc}64\\8\end{array}\right]= \frac{64!}{8!(64-8)!} = 4.43*10^9

Then:

P = \frac{40320}{4.43*10^9}*100\%=9.11*10^{-4}\%

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3 years ago
Given the figure below. What is the theorem or postulate that justifies triangle ABD congruent
Zina [86]

Answer:

SAS is the answer in my opinion

7 0
3 years ago
What is the estimate of 256+321
Sati [7]
The estimate would be 2+3 5+2 and 6+1 so 577 you can also just round and do 250 +300= 550 +20=570
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Answer this for me, please.
Scilla [17]

Answer:

the answer would be .5 miles

Step-by-step explanation:

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An olympic-size swimming pool is a rectangle that measures 50 meters in length and 25 meters in width. Make a scale drawing of a
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Length: 10 cm

Width: 5 cm

Step-by-step explanation:

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