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Questions and Answers
What is the formula to calculate the area of a circle?
What is the formula to calculate the area of a circle?
- A = r^2
- A = πr^2 (correct)
- A = 2Ï€r
- A = πd
Which of the following is the correct formula to calculate the compound interest?
Which of the following is the correct formula to calculate the compound interest?
- A = P(1 + r/n)^nt (correct)
- A = P(1 + r)^nt
- A = P(1 + r)^n
- A = P(1 + r/n)^(nt-1)
Which of the following is the correct formula to calculate the standard deviation?
Which of the following is the correct formula to calculate the standard deviation?
- σ = √(Σ(x - μ)/N-1)
- σ = √(Σ(x - μ)^2/N-1) (correct)
- σ = √(Σ(x - μ)^2/N)
- σ = √(Σ(x - μ)/N)
