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Entry checkpoint: choose a starting point: original cases with explanations after your first response.
Paper packet. Every task here also exists on screen, where it is checked automatically; answers written on paper are not assessed by Nydus. When you are back at a device, enter your answers there.
Sample a standardized score, a probability complement and nonempty subset counting before study. Record the denominator or sample space that makes each calculation meaningful.
A data set has mean 18 and standard deviation 4. A standardized value is defined as (x-mean)/SD. What standardized value corresponds to x=12?
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A fair coin is tossed three times. What is the probability of at least one head?
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How many subsets of a set with six elements are nonempty?
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Use this data analysis starting sample to choose the next worked lesson; repeated exposure is review and does not predict an official score.