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it is non-random and prone to bias unrepresentative of target population
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What percent of members in a random sample have an equal chance of being selected?
100% or each one of them.
When taking a systematic random sample of size and n every group of size n from the population has the same chance of being selected?
That is not true. It is true for a simple random sample but not one that is systematic.
When every member of a set has an equal chance of being selected as part of a sample it is called what?
A simple random sample or a probability sample.
What is stratified random sampling in statistics?
Stratified Random Sampling: obtained by separating the population into mutually exclusive (only belong to one set) sets, or stratas, and then drawing simple random samples (a sample selected in a way that every possible sample with the same number of observation is equally likely to be chosen) from each stratum.
What is the probability of not geeting a queen in a well shuffled deck of 52 playing cards?
If only one card is selected the probability is 12/13.If only one card is selected the probability is 12/13.If only one card is selected the probability is 12/13.If only one card is selected the probability is 12/13.
What are the advantages of self selected sample?
The respondents actually cared enough one way or another to participate.
What is a self-selected survey?
A self-selected sample survey is when the surveyer choses who he or she wants to ask the survey question to. So, the people surveyed are not random at all. One problem with this is that the surveyer can easily manipulate results by asking a group of people specifically to get a certain result. For example, if I wanted to do a survey about abortion, and I wanted the results to be in favor of my liberal views, I might only survey people in a liberal coffee shop in Seattle. This is a self-selected survey.
What percent of members in a random sample have an equal chance of being selected?
100% or each one of them.
When taking a systematic random sample of size and n every group of size n from the population has the same chance of being selected?
That is not true. It is true for a simple random sample but not one that is systematic.
Which is correct. one of you has to be selected or one of you have to be selected?
One of you has to be selected
What is the best definition for random sampling?
There are two equivalent definition. Definition 1: A simple random sample is one for which each element has the same probability of being included in the sample. Definition 2: A simple random sample is one where all sample of that size have the same probability of being selected. Although the words are similar, the first refers to the selection of individuals from the population whereas the second refers to the samples.
What are the 4 kinds of sampling methods in math?
random sampling ,systematic sampling , self-selected , and there is one more i don't know
What is one of your weaknesess?
Thinking about weakness is my weakness
How would you know if someone has a drug problem?
they would not be their normal self nor act like their normal self. If your close enough and genuinely worried about the person, just ask them as its better on your mind. However if you want to go all MI5. One can gain a sample of DNA, say a hair sample and have it tested.
What is sample?
A sample is a subcollection of members selected from a population. (Ref Triola, Elementary Statistics). A sample may be real or hypothetical. Real- Ten patients at the hospital were interviewed about the care they received. Hypothetical- Repeatedly drawing n independent, and identical values X1, X2... Xn from a normal distribution to form a random sample, the mean of this sample should conform to a normal distribution, if the sample size is greater than 30.
Who viewed peace as a weakness and how did they respond to weakness ww2?
No one thought peace was a weakness. It is what a all parties wanted.
What is the difference between sample and sample size?
a sample is a sample sized piece given... a sample size is the amount given in one sample
