Two-Way Frequency Tables



Algebra 1 Practice for Marginal and Relative FrequencyThe following table shows the gender of a high school student and their most important goal while in high school. GRADESPOPULARSPORTSTOTALBOY1175060227GIRL130913025124714190478If a student is chosen at random, what is the relative frequency (round to nearest hundredth):The person chosen is a girl whose goal is to be popular? The person chosen has a goal of grades? You know the person chosen has a priority of sports. What is the probability that person is male? The person chosen does not have popularity as their most important goal?The person’s most important goal is grades, given that a girl is chosen? Algebra 1 Practice for Marginal and Relative Frequency KEYThe following table shows the gender of a high school student and their most important goal while in high school. GRADESPOPULARSPORTSTOTALBOY1175060227GIRL130913025124714190478If a student is chosen at random, what is the relative frequency of:The person chosen is a girl whose goal is to be popular? 130/478 = .27 The person chosen has a goal of grades? 247/478 = .52You know the person chosen has a priority of sports. What is the probability that person is male? 60/90 = .67The person chosen does not have popularity as their most important goal?337/478 = .71The person’s most important goal is grades, given that a girl is chosen? 130/251 = .52 ................
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