3 years ago

Please help. I need help with B.

Mathematics

1 answer:

Bogdan [553]3 years ago

7 0

Andrew is wrong The mat is only 100 times bigger than the unit, hope this helps :D

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"Large Sample Proportion Problem. Surveys were conducted in multiple countries and respondents were asked if they felt political

melomori [17]

Answer: 0.0158

Step-by-step explanation:

Given : The data for the United States is that out of 1,000 sampled, 470 indicated yes, they felt political news was reported fairly.

According to the given information we have,

Sample size : n= 1000

Sample proportion: $\hat{p}=\dfrac{470}{1000}=0.47$

The standard error for proportion is given by :-

$S.E.=\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$

$S.E.=\sqrt{\dfrac{0.47(1-0.47)}{1000}}$

$S.E.=\sqrt{0.0002491}$

$S.E.=0.0157829021412\approx0.0158$

[Rounded to the nearest four decimal places.]

Hence, the standard error for the confidence interval = 0.0158

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3 years ago

Write 9x - 8 as a verbal expression <br><br> Please the fast as possible!

Natalka [10]

Answer:

8 subtracted from the product of 9 and x

Hope this helps!

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2 years ago

The two-way table shows the number of students in a school who have rabbits and/or birds as pets:

kiruha [24]

It's 3 (total number of have rabbits that's 43 - Have rabbits which is 40) 43-40= 3

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3 years ago

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Which letter below appears to have no right angles?THEN

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The letter that has no right angles is N

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Mel and Nancy both worked hard over the summer. Together they earned a total of $525. Mel earned $75 more than Nancy.

Tomtit [17]

Answer:

M- 300

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Step-by-step explanation:

525 - 75 = 450

450/2= 225

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