Scenario: Is there a relationship between test scores (X) and presentation type (Y)? Test scores were quantified using the % correct. Students were able to choose the presentation type of their test — they could take the test online or in-person. Question: What is the most appropriate statistical test to conduct given this scenario? Pearson's r correlation Spearman correlation Point Biserial correlation Phi correlation

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A: Solution-: To calculate a RELATIVE frequency table for variable G Do the relative frequencies in the…

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A: The null and alternative hypotheses are: C. H0:ρ≠0H1:ρ=0

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Q: Them the value of var(X + 2Y) is equal to:

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