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Iteru [2.4K]
3 years ago
15

To find how high school students feel about hot lunches, Adam walks to the nearest high school and gives a survey postcard to ev

ery twentieth student that enters the building. He asks the students to mail the postcard in if they choose to participate in the study. Select all sampling methods used. cluster convenience simple random stratified systematic voluntary
Mathematics
2 answers:
tatuchka [14]3 years ago
7 0

Convenience

Systematic

Voluntary



Eddi Din [679]3 years ago
3 0
The surveyor selects the twentieth student who enters the building. The student do not enter the building to be surveyed but for other reasons and the researcher take advantage of that and selects them. This is a form of continence sampling.
 The researcher selects every twentieth student and not any other. Therefore, the sampling is systematic in nature.
Finally, students selected to participate in the survey are free to choose if to participate in he survey or not. Therefore, it is voluntary kind of sampling.

Therefore, the applicable sampling methods are convenience, systematic, and voluntary.
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2 years ago
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7 0
3 years ago
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snow_lady [41]

Step-by-step explanation:

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3 0
3 years ago
How many rulers of 12-inches are needed to measure a door awnser
Fudgin [204]
<span>the dimensions of a door are variable, for effects of this problem we will assume a door height of 210 cm and a door width of 80 cm

Step 1
</span><span>convert the dimensions of the door in cm to inches
</span>we know that
1 in-------------> 2.54 cm
X----------------> 210 cm
X=210/2.54=82.67 in (height)

1 in-------------> 2.54 cm
X----------------> 80 cm
X=80/2.54=31.50 in (width)

the dimensions of a door are 31.50 in x 82.67 in

Step 2
calculate the amount of rules of 12-inches necessary to measure the height of the door
82.67 in (height)
if one rule-------------> measure 12 in
X----------------------> 82.67 in
X=82.67/12=6.8-----------> 7 rules

Step 3
calculate the amount of rules of 12-inches necessary to measure the width of the door
31.50 in (width)
if one rule-------------> measure 12 in
X----------------------> 31.50 in
X=31.50/12=6.8-----------> 2.62 ------------> 3 rules

the answer is 
to measure a door are needed about 7 rules of 12-inches for the height and about 3 rules of 12-inches for the width
7 0
3 years ago
I need to know the answer!!
puteri [66]
Next time, please begin with a question of your own, and share whatever work you have done.

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Next, reflect point I in the origin.  The original point I is (-4,4).  Reflecting this in the origin takes you from Quadrant 2 to Quadrant 4.  The coordinates of the new point I' are (4,-4).  Spend enuf time with this so that it becomes clear.

Next, reflect point K in the origin.  You might want to draw a straight line thru point K and the origin.  The new point, K', will lie on this line the same distance from the origin  as is the old point K is from the origin.
5 0
2 years ago
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