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Shalnov [3]
3 years ago
6

A city will soon be voting on a bond issue which will provide the necessary funds for a new middle school. The school board want

s to know how likely it is that the bond issue will pass. They randomly sample three groups of 200 people and ask each person whether they are for or against the bond issue. The results are recorded in the table below.
For Against
Sample #1 111 89
Sample #2 97 103
Sample #3 104 96

Based on the collected data, do you think the bond issue will pass or fail? How confident are you? Explain your reasoning using complete sentences.
Using the mean of the samples, approximately how many of the 15,000 voters would you expect to vote against the bond issue?
Mathematics
2 answers:
kondaur [170]3 years ago
7 0

A total of 600 people were asked.

A total of 312 people were for it.

312/600 = 0.52 = 52% were for it.

This means 100-52 = 48 % were against it.

Since more than 50% voted for it, it would most likely pass.

Since they used three separate sample groups I’d be confident that it passes.

15,000 x 48% = 7,200 would vote against it.

pishuonlain [190]3 years ago
4 0

Answer:

A total of 600 people were asked.

A total of 312 people were for it.

312/600 = 0.52 = 52% were for it.

This means 100-52 = 48 % were against it.

Since more than 50% voted for it, it would most likely pass.

Since they used three separate sample groups I’d be confident that it passes.

15,000 x 48% = 7,200 would vote against it.

Step-by-step explanation:

Credit goes to person above thank for the points and good job on your answer^^

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Step-by-step explanation:

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Answer:

∠1 is 33°

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Step-by-step explanation:

First off, we already know that ∠2 is 57° because of alternate interior angles.

Second, it's important to know that rhombus' diagonals bisect each other; meaning they form 90° angles in the intersection. Another cool thing is that the diagonals bisect the existing angles in the rhombus. Therefore, 57° is just half of something.

Then, you basically just do some other pain-in-the-butt things after.

Since that ∠2 is just the bisected half from one existing angle, that means that ∠3 is just the other half; meaning that ∠3 is 57°, as well.

Next is to just find the missing angle ∠1. Since we already know ∠3 is 57°, we can just add that to the 90° that the diagonals formed at the intersection.

57° + 90° = 147°

180° - 147° = 33°

∠1 is 33°

Finally, since that ∠4 is just an alternate interior angle of ∠1, ∠4 is 33°, too.

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