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Lunna [17]
2 years ago
9

22.

Mathematics
1 answer:
kykrilka [37]2 years ago
4 0

The option fourth "There is a strong negative relationship between x and y" is correct.

<h3>What is correlation?</h3>

It is defined as the relation between two variables which is a quantitative type and gives an idea about the direction of these two variables.

\rm r = \dfrac{n(\sum xy)-(\sum x)(\sum y)}{\sqrt{{[n\sum x^2- (\sum x)^2]}}\sqrt{[n\sum y^2- (\sum y)^2]}}

 

The options are:

  • There is no relationship between x and y.
  • There is a weak negative relationship between x and y.
  • There is a strong positive relationship between x and y.
  • There is a strong negative relationship between x and y.

We have data:

x 7 8 9 10 11 12 13

y 13 10 7 6 5 3 0

The value of correlation r = -0.9847

As we know the value of r between -1 to +1

If r = 1 (perfect and positive correlation)

if r = -1 (perfect and negative correlation)

We have r = -0.9847

The value is near to -1 which means there is a strong negative relationship between x and y.

Thus, the option fourth "There is a strong negative relationship between x and y" is correct.

Learn more about the correlation here:

brainly.com/question/11705632

#SPJ1

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Mrac [35]

if a = b and b = c, then a = c.

In this case if y = - 7 and -7 = z then y = z  .................>(y = a, -7 = b and z = c)

Answer:  B)

transitive property of equality




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3 years ago
Write the multiple of the first even number from 11 to 20​
andrew-mc [135]

Answer:

Multiples [10] - 10, 20, 30, 40, 50

Multiples [11] - 11, 22, 33, 44, and 55

<u><em>Find the Even numbers of these multiples</em></u>

Multiples [10]

  • - 10 = Even
  • - 20 = Even
  • - 30 = Not Even
  • - 40 = Even
  • - 50 = Not Even

  1. <u><em>10 × 1 = 10</em></u>
  2. <u><em>10 × 2 = 20</em></u>
  3. <u><em>10 × 3 = 30</em></u>
  4. <u><em>10 × 4 = 40</em></u>
  5. <u><em>10 × 5 = 50</em></u>

Multiples [11]

  • - 11 = Not Even
  • - 22 = Even
  • - 33 = Not Even
  • - 44 = Even
  • - 55 =  Not Even

  1. <u><em>    11 × 1 = 11</em></u>
  2. <u><em>    11 × 2 = 22</em></u>
  3. <u><em>    11 × 3 = 33</em></u>
  4. <u><em>    11 × 4 = 44</em></u>
  5. <u><em>    11 × 5 = 55</em></u>
  6. <u><em>    11 × 6 = 66</em></u>
  7. <u><em>    11 × 7 = 77</em></u>
  8. <u><em>    11 × 8 = 88</em></u>
  9. <u><em>    11 × 9 = 99</em></u>

Step-by-step explanation:

.... I messed up, sorry. I thought that 20 said 11

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Using the data from the theoretical probability table, what is the probability of the spinner landing only once on yellow in two
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Answer:

0.375 on edge

Step-by-step explanation:

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Answer:

Concept: Slope

  1. Denominator would be x2-x1
  2. Hence 2-1 which is A
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Answer:

C

Step-by-step explanation:

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