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TiliK225 [7]
3 years ago
9

Why is it essential to operationally define the variables in a study?

Advanced Placement (AP)
1 answer:
Liula [17]3 years ago
3 0
Cuz you have to eat bootie
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What do you mean by bequeath?
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to give or leave by will (see will entry 2 sense 1) —used especially of personal property a ring bequeathed to her by her grandmother. 2 : to hand down : transmit lessons bequeathed to future generations

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Which of the following is the first key to reducing the risk of exposure to bloodborne pathogens?
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A: Education

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The owner of a plant nursery will conduct a study to investigate whether a new fertilizer is more effective than an older fertil
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1. It reduces the probability of sampling bias.

2. A random sample will be more representative of the whole population.

3. Allows the researcher to determine the efficacy of the fertilizer.

Explanation:

Selecting a simple random simple from a large population is a widely used method in science. Researchers select a random sample so every individual, in this case seedling, has an equal chance to be selected.

Therefore, it is an accurate method that, although is not free from errors, avoids or reduces the probability of sampling bias. Selecting a truly random tomato seedling will be more representative of the whole population of seedling instead of selecting carefully a seedling that already has specific or desired characteristics. Hence, this random sampling will allow the researcher to determine the efficacy of the fertilizer.

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What are the two main types of seismic waves that are created during an earthquake (15 points)
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- body waves

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