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4.1.5 Determine the variance of the number of points scored 4.2 An organisation against people drinking needed data to do research on the age of people still drinking. A random sample of people where selected and 4.2.1 Determine the mean age of drinkers 4.2.2 Determine the modal age of drinkers 4.2.3 Determine the median age of drinkers 4.2.4 Determine the standard deviation age of drinkers 4.2.5 How many drinkers are under the age of 25 ? 4.2.6 What percentage of drinkers are 25 years or older? 4.2.7 Construct the Histogram SECTION C: QUESTION 5 Suncoast Casino wants to research the habits of its restaurant