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Nana76 [90]
2 years ago
13

С

Mathematics
1 answer:
Wittaler [7]2 years ago
5 0

n word go brrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr

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For a store contest four out of 65 people who visit the store will receive a free DVD if 455 people visit the store how many DVD
klemol [59]
Divide 455 by 65 and get 7 multiply it by 4 and get 28. 28 dvds will be given away.
3 0
3 years ago
Which of the following correctly
ikadub [295]

Answer: 0.075, 0.75%, 3/4

Step-by-step explanation:

3/4 and 0.75% are the same value but expressed in different ways. 0.0075 is less than them.

3 0
3 years ago
An ABC News poll asked adults whether they felt genetically modified food was safe to eat. 35% felt it was safe, 52% felt it was
Masteriza [31]

Answer:

The proportions differ from those reported in the survey.

Step-by-step explanation:

The Chi-square goodness of fit test would be used to determine whether the proportions differ from those reported in the survey.

The hypothesis for the test can be defined as follows:

<em>H</em>₀: The proportions does not differ from those reported in the survey.

<em>Hₐ</em>: The proportions differ from those reported in the survey.

Assume that the significance level of the test is, α = 0.01.

The Chi-square test statistic is given by:

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

Consider the Excel sheet provided.

The Chi-square test statistic value is 191.32.

The <em>p</em>-value of the test is:

p-value=P(\chi^{2}_{(n-1)}>191.32)\\\\=\text{CHISQ.DIST.RT}(191.32,2)\\\\=0.0000

The <em>p</em>-value of the test is very small. The null hypothesis will be rejected at 1% level of significance.

Thus, concluding that the proportions differ from those reported in the survey.

5 0
3 years ago
Marissa used the set of ordered pairs below to graph a relation.
Rudiy27

Answer:

(3,2,4).............

4 0
3 years ago
Read 2 more answers
Can I get some help on this question please
mr Goodwill [35]

things were not as complicated when I was in middle school.

3 0
2 years ago
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