S2 POPULATIONS & SAMPLING Crossword

you could give every unit a number and count how many there are
takes a long time, costs a lot, difficult to ensure everyone included
John, Sandra, Tony are all examples of
representative of population, cheap, data readily available, good if units are destroyed after testing
every sample of size n has an equal chance of being selected
mu and sigma are examples of
Example: a population composed of flipping a coin continuously until a head is obtained
a quantity calculated solely from the observations in a sample
occurs when taking a sample which prevents true representation of population
individually named or numbered sampling units compiled into a list
an investigation using a sample
includes everyone, unbiased, gives an accurate answer
could be subject to natural variation and bias
Example: the number of stars in the universe