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andriy [413]
3 years ago
15

The ratio of 7th grade students to 8th students in a soccer league is 17:23. If there are 200 students in all, how many are in t

he 7th.
Mathematics
1 answer:
Katarina [22]3 years ago
8 0

Answer:

<h2>35</h2>

Step-by-step explanation:

<h2>17:23=17+23=40</h2><h2><u>7</u>×200</h2><h2>40</h2><h2><u>7</u>×20</h2><h2>4</h2><h2>7×5=35</h2>

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The proportion of a population with a characteristic of interest is p = 0.37. What is the standard deviation of the sampling dis
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The standard deviation (SD) of a sample proportion obtained when the sample size is 1,600 is equal to 0.0121.

<h3>What is a sample proportion?</h3>

A sample proportion can be defined as the proportion of individuals in a sample that have a specified characteristic or trait.

Mathematically, sample proportion can be calculated by using this formula:

\hat{p} = \frac{x}{n}

Where:

  • x represent the number of individuals with a specified characteristic.
  • n represent the total number of individuals in a sample.

In Mathematics, the standard deviation (SD) of a sample proportion obtained when the sample size is 1,600 can be calculated by using this formula:

Standard deviation (SD) = √(p(1 - p)/n)

Substituting the given parameters into the formula, we have;

Standard deviation (SD) = √(0.37(1 - 0.37)/1,600)

Standard deviation (SD) = √(0.37(0.63)/1,600)

Standard deviation (SD) = √(0.2331)/1,600)

Standard deviation (SD) = √0.0001457

Standard deviation (SD) = 0.0121.

Read more on standard deviation here: brainly.com/question/14467769

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8 0
1 year ago
Write the equation of a line where slope = 2 and (1,3) is on the line in slope intercept form
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4 years ago
What is the length of the side of the triangle labeled x?
diamong [38]

Answer:

its an equilateral triangle and so one of the side is 6

so to find the answer you should multiply one side into 3

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                                                                       =6 x 3

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Step-by-step explanation:

mark as brainliest

thank me

4 0
3 years ago
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Step-by-step explanation:

15=2c+7

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8=2c

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4=c

c=4

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