Examlex
In a line chart, the horizontal axis represents time (such as months, years) and the vertical axis represents the value of the variable of interest.
Fair Coin
A theoretical coin which has an equal chance of landing on heads or tails.
Observed Frequencies
The actual number of occurrences or instances of a variable category observed in a statistical sample.
Chi-squared Goodness-of-fit Test
A statistical test used to determine if observed data fits a theoretical distribution.
Rule of Five
A statistical rule of thumb asserting that if a sample size is large enough (n>30), the sample means will be normally distributed.
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