Random sampling (Edexcel GCSE Statistics): Flashcards
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Practise the cards
10 cards from this deck
What is the main goal of random sampling?
What is the main goal of random sampling?
To give every member an equal chance to be selected.
Name a method to create a truly random sample.
Name a method to create a truly random sample.
Using a random number table or generator.
What's an advantage of random sampling?
What's an advantage of random sampling?
It reflects the true characteristics of the population.
Why are large samples beneficial in random sampling?
Why are large samples beneficial in random sampling?
They better represent the entire population.
Describe the paper slip method for random sampling.
Describe the paper slip method for random sampling.
Write names on slips, mix, then draw randomly.
How does technology aid in random sampling?
How does technology aid in random sampling?
Calculators and computers can generate random numbers instantly.
What is a sampling frame?
What is a sampling frame?
A complete list of all items or members in the population.
Give an example of manual random number generation.
Give an example of manual random number generation.
Rolling a ten-sided dice to get a random digit.
What does the RanInt function do on a calculator?
What does the RanInt function do on a calculator?
Generates random whole numbers within a specified range.
Why is random sampling unbiased?
Why is random sampling unbiased?
It gives equal chance to all population members.