STAT-1401 Lecture Notes - Lecture 3: Sample Space, Interquartile Range, Box Plot
26 Apr 2020
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Document Summary
Calculate measures of center: mean, median, mode, and weighted mean for grouped and ungrouped data. Calculate the variability of data by using tools: range, variance, standard deviation, coefficient of variation. Overview - terminology: experiment, outcome, event and sample space. Probability is a measure of the likelihood or chance of something happening. We may have heard/used the following statements in everyday life: There is a 50:50 chance that a head will turn up when you toss a coin. Head is as likely to occur as tail - they are equally likely. There will be a 30% chance of rain in winnipeg tomorrow. There is a 0. 001% chance of an allergic reaction from a certain medication. The probability of getting an even number rolling a die is 0. 5. Relative frequency of probability of an event is defined as the number of times that the event occurs during experimental trials, divided by the total number of trials conducted.
