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3 years ago

“Help me and give me an explanation pls”

Mathematics

2 answers:

SIZIF [17.4K]3 years ago

8 0

Answer:

Step-by-step explanation:

There are 7 pieces of data. So you can eliminate B and D immediately because they only have 6 data points on them.

Now if you look closely at A and C, the only difference is the point near the 14. In the list of data, the point near 14 is 14.125, so the point should be near BUT PASSED (above, to the right of) 14.

C is not the answer because the point near 14 is more like on 13.75. So A is the best answer.

Mandarinka [93]3 years ago

7 0

Answer: The answer is C.

Step-by-step explanation:

If you look at C. you can see three dots 11.25, one dot 10. 5, one dot 12, one dot 12.5, and one dot 14.125. That correctly places all number on the line. I hope i help if im wrong sorry.

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The mayor of a town has proposed a plan for the construction of a new community. A political study took a sample of 800 voters i

Hunter-Best [27]

Answer:

A political strategist wants to test the claim that the percentage of residents who favor construction is more than 30%, so then that represent our claim and needs to be on the alternative hypothesis.

Based on this the correct system of hypothesis are:

Null hypothesis: $p \leq 0.3$

Alternative hypothesis $p >0.3$

Step-by-step explanation:

We have the following info given from the problem:

$n= 800$ the random sample of voters selected from the town

$\hat p = 0.34$ represent the proportion of residents favored construction

$p_o = 0.30$ represent the value desired to test.

Based on this the correct system of hypothesis are:

Null hypothesis: $p \leq 0.3$

Alternative hypothesis $p >0.3$

And in order to test this hypothesis we can use a one sample z test for a population proportion and the statistic would be given by:

$z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}}$ (1)

And with the data given we have:

$z=\frac{0.34 -0.3}{\sqrt{\frac{0.3(1-0.3)}{800}}}=2.469$

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3 years ago

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laiz [17]

Answer:

Step-by-step explanation:

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A number increased by 3 and then multiplied by 5 is at least -10. What are the three lowest natural number values this can be?

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Step-by-step explanation:

It is impossible for the number values of this number to be a natural number since natural numbers are defined as being positive integers while the number "x" has to be less than -5 to satisfy the equation.

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The scale factor from S to M is 3/2 What is the scale factor from M to S

natita [175]

we conclude that if the scale factor from S to M is 3/2, then the scale factor from M to S is 2/4.

<h3></h3><h3>What is the scale factor from M to S?</h3>

Suppose we have a figure S. If we apply a stretch of scale factor K to our figure S, we can say that all the dimensions of figure S are multiplied by K.

So, if S represents the length of a bar, then after the stretch we will get a bar of length M, such that:

M = S*K

If that scale factor is 3/2, then we have the case of the problem:

M = (3/2)*S

We can isolate S in the above relation:

(2/3)*M = S

Now we have an equation (similar to the first one) that says that the scale factor from M to S is 2/3.

Then we conclude that if the scale factor from S to M is 3/2, then the scale factor from M to S is 2/4.

If you want to learn more about scale factors:

brainly.com/question/25722260

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