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Match the description with the formula. a binomial probability where the probability of success and failure...
8. Match the description with the formula.
a binomial probability where the probability of success and failure are equally possible
○ nCr(p)^r(1-p)^(n-r)
○ μ = Σ[X · P(X)]
○ σ² = Σ[x² · P(X)] - μ²
○ nCr(0.50)^n
9. Choose the correct answer.
You have a multiple-choice test of 25 questions with 4 choices for each question. You choose each answer at random and get 4 answers correct. What is the probability of that happening? Round to the nearest hundredth.
○ 0.03
○ 0.04
○ 0.12
○ 0.14
a binomial probability where the probability of success and failure are equally possible
○ nCr(p)^r(1-p)^(n-r)
○ μ = Σ[X · P(X)]
○ σ² = Σ[x² · P(X)] - μ²
○ nCr(0.50)^n
9. Choose the correct answer.
You have a multiple-choice test of 25 questions with 4 choices for each question. You choose each answer at random and get 4 answers correct. What is the probability of that happening? Round to the nearest hundredth.
○ 0.03
○ 0.04
○ 0.12
○ 0.14