In History, you earned an exam score of X-85 where the exam average was μ-65 with a standard deviation of σ-5. In Biology, you earned an exam score of X-90 where the exam average was μ י 85 with a standard deviation of σ-10. In which class did you score better compared to your classmates?A. Biology B. No answer text provided.C. You did equally well in both classes. D. History
Accepted Solution
A:
Answer: D. HistoryStep-by-step explanation:To answer this question, we need to use the z-score formula written below:[tex]\frac{x-pop. mean}{stan. devi.}[/tex]Now we'll just plug in the numbers and solve.History:[tex]\frac{85-65}{5} = 4[/tex]Biology:[tex]\frac{90-85}{10} =0.5[/tex]As we can see, history wields a higher z-score than biology, thus leaving us with option D. History