A sample in which each individual in the population has an equal chance to be selected is a ________________.

1 answer:

5 0

A sample in which each individual in the population has an equal chance to be selected is a "simple random sampling".

<h3>What is simple random sampling?</h3>

A subset of such a statistical population called a simple random sample is one where each member has an equal chance of being chosen. A straightforward random sample is intended to offer an objective depiction of a group.

Some key features of simple random sampling are-

A straightforward random sample, where each participant has an equal chance of being selected, selects a tiny, random piece of the total population that will represent the full data set.
Using techniques like lottery or random draws, researchers can generate a straightforward random sample.
If a sample does not precisely reflect the population it really is intended to represent, there may have been a sampling error.

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The population of Oak Forest is increasing at a rate of 4% per year. If the population is 39,410 today, what will it be in three

Nataly [62]

The population of Oak Forest is increasing at a rate of 4% per year.

Increase rate, r = 4%

Current population, P = 39,410

time, t = 3 years

Population after 3 years will be:
$P{(1 + \frac{r}{100} )}^{t} \\ \\ = 39410 \times { ( 1 + \frac{4}{100} )}^{3} \\ \\ = 39410 \times {1.04}^{3} \\ \\ = 44330.89 \\ \\ \approx \boxed{44331}$

Population after 3 years will be 44331

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3 years ago

What is the first step to solve the following system of equations using substitution?

Akimi4 [234]

Answer:

Step 1: Solve one of the equations for one of the variables. Let's solve the first equation for x

Thus, option A) is true.

The solution to the system of equations be:

$x = 4, y = 5$

Step-by-step explanation:

It is important to remember that when we solve the system of equations, the first step we need to do is to solve one of the equations for one of the variables.

Given the system of equations

$x - y = -1$