Suppose a student got an 82 on an exam that was worth 25% of the final grade, a 75 on another exam worth 25% of the final grade, and 93 for a homework score worth 10% of the final grade. They only have the final exam left, which is worth 40% of the final grade. What score is needed on the final exam to get a 90 for a final grade?

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A: Given: P(A) = 60% = 0.60 P(AUB) = 93% = 0.93 Formula Used: P(AUB) = P(A) + P(B) - P(A∩B)

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A: Given From calculation Mean= 76.74 S=20.649

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Q: If E(0) = 0 then is said to be a(n)

A: if Eθ^=θ then θ^ is said to be unbiased estimate for θ.