For each graph below, state whether it represents a function.
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An energy drink company claims that its product increases students' memory levels. to support its claims, the company issues advertisements claiming that 8 out of 10 people (chosen randomly from across the country) who tried their product reported improved memory. the missing component in this study is a .

If p(a) = 0.70 and p(b) = 0.20, then a and b are independent events if

Pls the last one and it has to be like number 6