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AnnZ [28]
2 years ago
14

If a researcher needs a sample that is representative of the population they are studying, they could utilize a _______.

Mathematics
1 answer:
vova2212 [387]2 years ago
8 0

The researchers could utilize a probability sample.

Meaning of a Probability Sample

Every member of a population must have an equal chance of being chosen for a study in order for a sample to be considered a probability sample, and the researcher must be aware of this likelihood. The most typical type of sampling used in public opinion research, election polling, and other studies whose findings will be generalized to a larger population is probability sampling in which probability samples are made use of.

Probability Sample as the Representative of Population Sample

Here, a sample that qualifies for a representative of the population the researchers are studying, must consist of members having equal chances to be chosen for the study. Thus, a probability sample is the best representative of their study population.

Learn more about probability sample here:

brainly.com/question/28016369

#SPJ4

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Alicia bikes 25% of a 100-mi trip on the first day. she bikes of the remaining distance on the second day. on the third day, she
DochEvi [55]
First day: 25% × 100 = 25 ( miles)
Second day : the remaining distance is 100 - 25 = 75 ( milesl
Third day: 40% × 75 = 30
25 + 75 + 30 = 130 (miles)

5 0
3 years ago
Please just answer don’t ask
frozen [14]

Answer:

20

The strawberry is 3, The watermelon is 3, The peach is 9, and the other one is 5

3+3+9+5=20

5 0
3 years ago
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A 30 foot ladder is set against the side of a house so that it reaches up 24 feet. If Alexander grabs the ladder at its base and
lana66690 [7]

Answer:

The answer would be 10.8

Step-by-step explanation:

By finding the missing base side on the original triangle (which is 18), we add 10 to that number to find the base side on the second triangle. We can then use the equation "sin(21.04) = x/30" to find the missing length side (21.04 is the degree measurement).

Hope this helps :)

4 0
2 years ago
Read 2 more answers
This is really confusing. Thanks for helping.
Mandarinka [93]
Count change of signs to tell positive roots
then replace x with -x and evaluate, then count change in sign for negative roots


initially
+, -, -, +, +, -
3 changes
3 or 1 positive roots


replacing x with -x
-,-,+,+,-,-
2 changes
2 or 0 negative roots



B is answer
5 0
3 years ago
HELP HELP PLEASE!! D:<br> Determine the missing side length!! <br> PLEASE NO CAP!!
charle [14.2K]

Answer:

missing side length = 9

Step-by-step explanation:

c^{2} = a^{2} + b^{2}

a = 6

b = 7

c = missing side

c^{2} = 6^{2} + 7^{2}

c^{2} = 36 + 49

c^{2} = 85

\sqrt{c^{2} } = \sqrt{85}

c = 9.219 = 9

5 0
3 years ago
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