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2 years ago

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.

To know more about simple random sampling, here

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Solve using method of your choice. PLease help 28 points

Burka [1]

$7x+y=-20\\
x-3y=-50\\\\
21x+3y=-60\\
\underline{x-3y=-50}\\
22x=-110\\
x=-5\\\\
-5-3y=-50\\
3y=45\\
y=15
$

-----------------------------------------------------

$(5x-8y)^2=-25$
No solution in real numbers.

5 0

3 years ago

6 children and 2 adults are going to the circus, children tickets are on sale, half the price of adult tickets totaling $54. How

inna [77]

Answer:

Price of 1 child ticket is $5.4

Price of 1 adult ticket is $10.8

Step-by-step explanation:

Given:-

6 children and 2 adults are going for circus.

Children ticket is half the price of adult ticket.

Total ticketing cost =$54

To find:-

Cost of 1 child ticket=?

Cost of 1 Adult ticket=?

Solution:-

Let price of 1 child ticket be x and price of 1 adult ticket be y,

therefore from the given data we get 2 equations,

$6x+2y=54$ -----------------------------------(1)

$x=\frac{1}{2} y$ --------------------------------(2)

Now, substituting the value of x from equation 2 in equation 1,

$6x+2y=54$

$6(\frac{1}{2} y)+2y=54$

$\frac{6}{2}y+2y=54$

$3y+2y=54$

$5y=54$

$\therefore y=\frac{54}{5}$

$\therefore y =10.8$ ------------------------(3)

Now, substituting the value of y from equation 3 in equation 2,

$x=\frac{1}{2} y$

$\therefore x=\frac{1}{2} \times 10.8$ ------------(from equation 3)

$\therefore x=\frac{10.8}{2}$

$\therefore x=5.4$ ----------------------(4)

As, x is price of 1 child ticket and y is price of 1 adult ticket,

Therefore price of 1 child ticket is $5.4 and price of 1 adult ticket is $10.8

7 0

3 years ago

A walkway forms one diagonal of a square playground. The walkway is 18 m long.

olga55 [171]

18m x 4 = 72m

Walkway = 72 meters.

6 0

3 years ago

In the year 2007, a person bought a new car for $23500. For each consecutive year after that, the value of the car depreciated b

Alexandra [31]

Answer:

17155

Step-by-step explanation:

23500-27%-17155

To the nearest hundred: 17200.

8 0

3 years ago

Find the simple interest on $900 for 18 months at a rate of 9.5% per year

Anestetic [448]

To get the simple interest, we must use the formula: I= (p)(r )( t)
So, in this one we need to multiply $900x18x9.% and the answer will be $128.25. This is the amount of interest they are going to pay per year.

6 0

4 years ago