Frequency table for variable “Outcome” Guided Solution 1a To do this, you will use StatCrunch to create the frequency table displaying frequencies and relative frequencies for the variable Outcome in the data file Field Goal Data for the 2013 NFL Season, as displayed in Figure 1 below.įigure 1. Exercise: Empirical ProbabilityĬompute the probabilities of different outcomes related to the execution of an NFL field goal play in 2013. The StatCrunch data file called Field Goal Data for the 2013 NFL Season has already been saved to a StatCrunch Group folder called AU Math216 2020 on the StatCrunch website.
A quick way to empirically derive the probability of each of the three outcomes is to create a frequency distribution table of the variable “Outcome” which displays the relative frequencies of each outcome. This event has three possible outcomes regarding the result of the field goal: “made” or “missed” or “blocked”. You will focus on the one variable Outcome of the field goal as the event of interest. One could view the probability experiment that generates this data as “an NFL field goal play is executed and one is interested in the outcome of the play”. You will open up the StatCrunch data file Field Goal Data for the 2013 NFL Season, which contains data relating to all the NFL field goals that occurred during the 2013 season. This method is called the Empirical Method of deriving probabilities. Empirical Probability: Compute probabilities involving one variableĬhapter 3 of your eText notes that one method of deriving probabilities for an event is to compute the relative frequency of the event after the related probability experiment has occurred numerous times in the past.
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