1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kaheart [24]
3 years ago
8

An education expert is researching teaching methods and wishes to interview teachers from a particular school district. She rand

omly selects ten schools from the district and interviews all of the teachers at the selected schools. Does this sampling plan result in a random sample? Simple random sample? Explain.
Mathematics
2 answers:
zaharov [31]3 years ago
5 0

Answer:No It is a Cluster Sampling.

Step-by-step explanation:

antoniya [11.8K]3 years ago
3 0

Answer:

No, It is a Cluster Sampling.

Step-by-step explanation:

Simple Random Sampling is the sampling when samples are chosen randomly, where each unit has an equal chance of being selected in a sample.

If the population is divided into a different group called cluster and clusters are selected as a sample then it is Cluster Sampling.

Here, since Expert is interviewing all of the teachers at the selected schools, so it is Cluster Sampling, not a Simple Random Sampling.

You might be interested in
<img src="https://tex.z-dn.net/?f=%28x%20-%203%29%28x%20%2B%204%29%28x%20-%202%29%20%3D%200" id="TexFormula1" title="(x - 3)(x +
AlexFokin [52]

Answer:

Step-by-step explanation:

x-3 = 0

x = 3

x + 4 = 0

x = -4

x - 2 = 0

x = 2

x = 3, -4, 2

8 0
3 years ago
The answer for this math problem
laiz [17]
Hi, We have a isosceles triangle.

Then,

There is two angles = (2x +2)°

As the sum of angles = 180° To the any triangle.

Then we wiil stay with:

(2x+2)° + (2x+2)° +(3x+1)° = 180°

Canceling °

2x+2+2x+2+3x+1=180

7x +5 = 180

7x = 180-5

7x = 175

Passing 7 dividing 175

x = 175/7

x = 25

This would be your answer!
7 0
3 years ago
I wander what the quadramatic fourmula is
Marrrta [24]
Definition of quadratic a formula
= a formula that gives the solutions of the general quadratic equation ax2 + bx + c = 0 and that is usually written in the form x = (-b ± √(b2 − 4ac))/(2a)
4 0
2 years ago
Read 2 more answers
Lily just paid off a $400 loan. She had to pay $60 in interest at a simple annual interest rate of 5%. How many years did Lily h
SCORPION-xisa [38]

Answer:

I=prt,,60=400*0.05t,,t=3 ..................

this is what i got i hope it is use full to you <3

Step-by-step explanation:

4 0
3 years ago
The coefficient of 8 • 2N is _____.
lesantik [10]

Answer:

16 is the coefficient of N.

Step-by-step explanation:

Coefficient is a multiplicative factor in some term of a polynomial, a series, or any expression; it is usually a number, but may be any expression. In the latter case, the variables appearing in the coefficients are often called parameters, and must be clearly distinguished from the other variables. The coefficients of an algebraic term can be positive or negative, and this multiplies the unknown term.

For example:

In 2a, 2 is the coefficient of a;

In x, 1 is the coefficient of x but it is not visible;

In 2/3p, 2/3 is the coefficient of p;

In -3f, -3 is the coefficient of f;

In 3 × 6t, 18 is the coefficient of t.

Variable is a symbol, commonly a single letter, that represents a number, called the value of the variable, which is either arbitrary, not fully specified, or unknown. Making algebraic computations with variables as if they were explicit numbers allows one to solve a range of problems in a single computation. A typical example is the quadratic formula, which allows one to solve every quadratic equation by simply substituting the numeric values of the coefficients of the given equation for the variables that represent them.

So,

In 8 × 2N, 16 is the coefficient of N ( 8 × 2 = 16)

N is the variable.

7 0
3 years ago
Other questions:
  • Divers in a competition are scored by an international panel of judges. The highest and the lowest scores are dropped. The total
    8·2 answers
  • Given the following diagram, if m∠1 = m∠4, then all of the following must be complementary angles except
    9·2 answers
  • What is the side length of the cube
    11·2 answers
  • Multiplication in exponential notation
    9·2 answers
  • Change to a fraction 3.025
    12·1 answer
  • What is the slope of the line that passes through the points (-2, 2), and (-4, -2)?
    10·2 answers
  • How many lakhs are there in 4 million?​
    5·2 answers
  • 2. Which expression is equivalent to 20+64
    7·1 answer
  • An object is dropped from a bridge and allowed to freefall to the ground. The height of the object over time can be modeled usin
    15·1 answer
  • DE =8 CM<br> DE = 4 CM<br> DE = 10 CM<br> DE = 6CM
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!