In a random experiment of answering a five-question multiple choice exam with five choices per question. We define a random variable C for counting the number of correct answers. What is the probability of getting at least 2 incorrect answers? What is the probability of getting 1, 3, or 5 correct answers?

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A: Given that  Sample size n =40 Favorable cases x =36 Sample proportion p^=x/n  =36/40 =0.9

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A: Margin of error (E) = 3% = 0.03Significance level (α) = 1 - 0.95 = 0.05

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A: Given that  sample of size= 14  sample mean = 11.9 and sample standard deviation =2.1.

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Q: 80 22 47 19 2 35 62 83 96 11 7

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