1. Suppose that a study produced the following results: Out of a group of 60 people who took Math Helper before their math exam, only 8 of them failed the exam. Out of a group of 60 people who took a placebo before the exam, 14 of them failed the exam. Calculate the absolute and relative risk reduction due to taking Math Helper. Also, calculate the number of people who must take Math Helper in order for one person to be helped.
2. Table 2 shows the experiences of 100 people who took a medication designed to prevent a certain condition. Calculate the absolute and the relative risk reduction due to taking the medication. Also, calculate the number of people who must take the medication in order for one person to be helped.
Table 2

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Took Placebo 20 Took Medication Developed condition Did not develop condition Total 15 85 80 100 100