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Luden [163]
3 years ago
9

Which is the most effective way to obtain a random sample of your school population

Mathematics
1 answer:
Ierofanga [76]3 years ago
8 0
Ask every fifth person that exits the school
(systematic random)
You might be interested in
The lengths of text messages are normally distributed with a population standard deviation of 3 characters and an unknown popula
slava [35]

Answer:

25.4, 28.6

Step-by-step explanation:

Given parameters

sample size, n = 24

sample mean, X = 27

population standard deviation, s = 3

critical value, Zα/2, where α = 0.01

99% confidence Interval, CI, is given as follows

CI = X ± Zα/2 × (s/√n)

Zα/2 = Z0.01/2 = Z0.005 = 2.576

CI = 27 ± 2.576 × (3/√24)

   = (25.42 ,28.57)

5 0
3 years ago
Can someone give example for parabole questions ?? Plss i am bad at math
qwelly [4]

Answer:

An example :-

  • 2x + 3y = 7 and y = - 2 x 2 + 2 x + 5.

Hope it helps!!

4 0
3 years ago
If a translation maps ∠I onto ∠K, which of the following statements is true?
jonny [76]

The statement which is true is  ΔGHI ~ ΔGJK.

<h3>What is Translation?</h3>

This is commonly used in geometry to describe a function which moves object at distances.

This therefore means that translation of ∠I onto ∠K means shifting of point I to point K.

The triangles given are HGI and JGK.

Translation in this scenario therefore means that the triangles are similar only if other angles are mapped to their corresponding angles.

It confirms that ΔGHI ~ ΔGJK thereby making it the most appropriate choice.

Read more about Translation here brainly.com/question/16253702

#SPJ1

3 0
2 years ago
Explain how the words term and coefficient are used in talking about the algebraic expression.
cupoosta [38]
<h2><u>Answer:</u></h2>

The <u>algebraic expressions</u> are composed of several elements: Terms, Coefficients, Signs, Variables and Exponents. In this case we will focus on the first two.

<u>The terms</u> are composed of sign, coefficient, variable and exponent. The terms are separated from each other by the plus sign (+) or the minus sign (-).

For example, in the following expression:

2x-3x

We have two terms separated by the negative sign (-):

2x is the first term

-3x is the second term

Now, <u>the coefficients</u> are the numbers that multiply the variable. <u>Note that if this coefficient is one (1) it is omitted .</u>

For example in the following expression, the variable is x:

2x-3x+x

2 is the coefficient of x in the first term

-3 is the coefficient of x in the second term

1 is the coefficient of x in the third term, <u>but is omitted </u>


In order to understand this in a better way, see the figure attached, where the algebraic expression is composed by one term.

6 0
3 years ago
Part 4. NO LINKS!! Find the area of the shaded area shown. SHOW WORK PLEASE !! #21​
SIZIF [17.4K]

Area of square

  • 32²
  • 1024

Radius of each circle

  • 32/4/2
  • 8/2
  • 4

Area of 16 circles

  • 16πr²
  • 16π(4)²
  • 16π(16)
  • 256π
  • 803.8cm²

Area of shaded region

  • 1024-803.8
  • 220.2cm²
5 0
2 years ago
Read 2 more answers
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