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Evgen [1.6K]
2 years ago
7

Calculate the average rate of change for the given graph from x = -2 to x = 0

Mathematics
1 answer:
Ludmilka [50]2 years ago
7 0

Answer: x goes from 0 to 2, y changes from 0 to -2

Step-by-step explanation:

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Mr. Acosta, a sociologist, is doing a study to see if there is a relationship between the age of a young adult (18 to 35 years o
Alik [6]

Answer:

There is a relationship between the age of a young adult and the type of movie preferred.

Step-by-step explanation:

In this case we need to test whether there is a significance relationship between the age of a young adult and the type of movie preferred.

The hypothesis can be defined as:

<em>H₀</em>: Age of a young adult and movie preference are independent.

<em>Hₐ</em>: Age of a young adult and movie preference are not independent.

The test statistic is given as follows:

\chi^{2}=\sum\limits^{n}_{i=1}{\frac{(O_{i}-E_{i})^{2}}{E_{i}}}

Consider the table below.

The formula to compute the expected frequencies is:

E_{i}=\frac{\text{Row Total}\times \text{Column Total}}{\text{Total}}

The Chi-square test statistic value is:

\chi^{2}=\sum\limits^{n}_{i=1}{\frac{(O_{i}-E_{i})^{2}}{E_{i}}}=2.6013

The significance level of the test is, <em>α</em> = 0.05.

The degrees of freedom of the test is,

df = (r - 1)(c - 1)

   = (3 - 1)(3 - 1)

   = 2 × 2

   = 4

Compute the <em>p</em>-value as follows:

<em>p</em>-value = 0.6266

*Use a Chi square table.

As the <em>p-</em>value is more than the significance level the null hypothesis was failed to be rejected.

Thus, concluding that there is a relationship between the age of a young adult (18 to 35 years old) and the type of movie preferred.

5 0
3 years ago
-(m-6)=3m+14 what is m
natta225 [31]
The answer is
- m + 6 = 3m + 14
- 4m = 8
m =  - 2
8 0
2 years ago
Which of the following is not for a parallelogram
Zinaida [17]
Not sure but I think it's (3)
6 0
2 years ago
Y= -1.4 -1 x intercept?
eimsori [14]

Answer:

b = -1.4

Step-by-step explanation:

5 0
2 years ago
2(4x - 12) + 3x = 6x + 1<br><br> help!! ahh
Anuta_ua [19.1K]
<span>2(4x - 12) + 3x = 6x + 1

Distribute.

8x - 24 + 3x = 6x + 1

Combine like terms.

11x - 24 = 6x + 1

5x = 25

x = 5

</span>
8 0
3 years ago
Read 2 more answers
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