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What may be some causes of random error for each micropipette?
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How can sampling error be reduced?
The best way to reduce sampling error is to use random sampling in the study. This means selecting the population to study through a random process. This will ensure that each member of the population under study has an equal chance of being selected.
When dividing a population into subgroups so that a random sample from each subgroup can be collected?
simple random sampling
What is the probability that two random cards are next to each other in a random deck of cards?
I just programmed a small software and find a 75,6% of two cards beein next to each other in 15 million random generated decks.
Find the greatest possible error and the percent error for each measurement 3cm 6cm 36.85g?
.5cm/.5cm/.005g
What is the difference between random sampling and random assignment?
Random assignment: assigning participants to experimental and control conditions by chance Vs. Random sample: a sample that fairly represents a population because each member has an equal chance of being included You decide :-D
How can sampling error be reduced?
The best way to reduce sampling error is to use random sampling in the study. This means selecting the population to study through a random process. This will ensure that each member of the population under study has an equal chance of being selected.
How do you overcome random error and systematic error?
Random error can be inherent to the system being studied or to the instruments being used to measure characteristics of the system. Sometimes it is possible to find or create measuring instruments that produce results with less random error; sometimes not. Statistical methods can often be employed to estimate actual values shorn of random error. If it not too expensive to obtain individual measurements then it's advisable to gather more measurements so that the statistical methods will produce better results. Systematic errors are often reduced by looking for their sources and eliminating them or by estimating the levels of distortion caused by each of them and correcting measurements accordingly.
What is a random sample?
A random sample is a selection from the population of interest where each item (persons, households, widgets, etc.) has an equal chance of being selected. The idea being that measuring a random sample of sufficient size will accurately (within a margin of error) reflect the "true" value that exists in the population - while at the same time reducing your study to a manageable size. A random sample is integral in good survey design to reduce bias in your experiment.
Why are there variations in traits?
Gametes are made by meiosis, in which chromosomes make an exact copy of themselves. Remember, there are 2 chromosomes (1 from mum, 1 from dad) in each pair and these chromosomes swap genes randomly, which causes variation in gametes so offspring are different to each other and their parents. Fertilisation is also a random process - there are thousands of egg and sperm cells which could form a zygote and it is random which egg and sperm cells actually do. Offspring may also be born with a mutation (could be beneficial or harmful) which causes variation.
What is the difference between simple random sampling and systematic random sampling?
simple random sample is to select the sample in random method but systematic random sample is to select the sample in particular sequence (ie 1st 11th 21st 31st etc.)• Simple random sample requires that each individual is separately selected but systematic random sample does not selected separately.• In simple random sampling, for each k, each sample of size k has equal probability of being selected as a sample but it is not so in systematic random sampling.
How random is your brain?
It is not random at all. The brain is very organized and each part of it has an purpose and function .
When dividing a population into subgroups so that a random sample from each subgroup can be collected?
simple random sampling
Why error using dot each function?
if the object you're trying to use .each on isn't an array, you'll encounter an error.
What is the probability that two random cards are next to each other in a random deck of cards?
I just programmed a small software and find a 75,6% of two cards beein next to each other in 15 million random generated decks.
How do you calculate truncation error?
The truncation error is the difference between two sides of an equation. Each side has an error value which can be compared.
Does each ovary take turns releasing an egg?
no. it can be random. :-)
What is a pattern that changes each time you run the presentation?
random
