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jekas [21]
3 years ago
13

Can someone please help me with this? Can someone please explain too?

Mathematics
1 answer:
GaryK [48]3 years ago
7 0

Answer:

1. A

2. D

3. D

Step-by-step explanation:

For one & two: Basically, what you do is you replace the Xs from the answers with all the set of numbers given from the question. You then see after you  test the numbers  w/ the answers it'll help you find the correct answer.

For three: Using all the numbers starting from zero to the left you use it to solve the problem by utilizing those numbers and replacing it w/ the Xs as explained above to find your answer.

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n a large high school, 37% of the teachers believe that five minutes is not enough time for students to change classes. However,
timurjin [86]

The difference (faculty-student) in the sample proportions of those who believe that five minutes is not enough time for students to change classes typically varies about 0.096 from the true difference in proportions. Option D is correct.

<h3>What is the standard deviation?</h3>

It is a measurement of statistical data dispersion. The degree to which the value varies is known as standard deviation.

The standard deviation of the sampling distribution is found as;

\rm \sigma_F-\sigma_s= \sqrt{\frac{0.37 \times (1-0.37)}{28}+\frac{0.89 \times (1-0.89)}{100}  } \\\\  \sigma_F-\sigma_s=0.096

The difference in the sample proportions of those who think five minutes is not enough time for students to switch classrooms generally differs by roughly 0.096 from the actual difference in proportions.

Hence option D is correct.

To learn more about the standard deviation, refer to: brainly.com/question/16555520.

#SPJ1

6 0
2 years ago
Create your own real-world problem that uses either a two-step equation or two-step inequality to solve. Based on your real-worl
zhuklara [117]
Libby wants to make cookies for her whole class. There are 36 students in her class. The recipe Libby is going to use only makes 12 cookies. How many batches of cookies is Libby going to have to make to feed her whole class?
36/12
3 0
3 years ago
Write 61/4℅ as a decimal
marta [7]
61/4 % converted into a decimal is 15.25


3 0
3 years ago
a parallelogram has one angle that measures 55 degrees. what are the measures of the other angles in the parrelogram.
Ugo [173]

a parallelogram has four sides so all its angles add up to make 360

the angle across from the 55 would also be a 55 equaling a 110 degrees angle leaving you with 250 so your other two angles both equal 125

3 0
4 years ago
Simplify:<br> 49 - 4 x 49 ÷ 7<br><br><br> 21<br> 34<br> 36
enot [183]

Answer:

21

Step-by-step explanation:

49 - 4 x 49 / 7 =

49 - 196 / 7 =

49 - 28 =

21

<em>Hope that helps!</em>

5 0
3 years ago
Read 2 more answers
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