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erica [24]
3 years ago
6

Explain how to estimate a population using random sampling

Biology
1 answer:
Nina [5.8K]3 years ago
6 0
Subjects in the population are sampled by a random process, using either a random number generator or a random number table, so that each person remaining in the population has the same probability of being selected for the sample.

How to Estimate a Population Total from a Simple Random Sample

1. This lesson describes how to estimate a population total, given survey data from a simple random sample. ...

2. Sample mean = x = Σx / n.

3. Population total = t = Nx.

4. where N is the number of observations in the population, and x is the sample mean.

A simple random sample is a subset of a statistical population in which each member of the subset has an equal probability of being chosen. ... In this case, the population is all 250 employees, and the sample is random because each employee has an equal chance of being chosen.

Random sampling is a part of the sampling technique in which each sample has an equal probability of being chosen. A sample chosen randomly is meant to be an unbiased representation of the total population.
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Answer:

The conclusion drawn from this information is:

The beef cooked well will not have a chance of having E coli or effecting anyone with it, because the bacteria will die from extreme heat.

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3 years ago
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Explanation:

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3 years ago
The all-or-none response means that
Delicious77 [7]

Answer:

option B) is correct

Explanation:

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The potential of a response of a muscle fiber or nerve cell is independent of the potential of the stimulus. If a stimulus is more than a certain critical value it will trigger muscle fiber or a nerve. Most importantly resulting in either an all-or-none response thus reducing possibility of any information loss.

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3 years ago
A radioactive material has a half-life of 30 days. You begin with 4 grams of radioactive material.
mario62 [17]

Answer:

a. 0.5 grams b. 0.25

Explanation:

Just use the half-life formula(I linked it below)

a. 4(1/2)^90/30=1/2

b. 4(1/2)^120/30=1/4

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Answer:

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