If 50% of a population take coeffeee and 100 investigators examine 10 individuals each to study their coffee habit, how many investigators would you expect to report that 3 or less people take coffee?

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A: here use Empirical rule

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Q: . ​P(z>1.91​) d. ​P(−1.96≤z<−0.22​) b. ​P(z<−1.74​) e. ​P(z≥​0) c. ​P(0.55≤z≤2.39​)

A: I solved exactly first three subparts because of bartleby policy if you want more please upload…

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Q: Q2: For the raw data shown in Table below: 1) Find out which of the x₁ or x₂ variables is better…

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