Mathematics, 25.05.2021 17:00 cravingnafi202
Let x be a random variable that represents the length of time it takes a student to write a history paper. It was found that x has an approximately normal distribution with mean μ = 7.5 hours and standard deviation σ = 1.8 hours. Do not round your final answers!
a. What is the probability that it takes at least 6 hours for a randomly selected student to write a history paper?
The probability is:
b. What is the probability that the mean time of writing a history paper for a random sample of 16 students is at most 7 hours?
The probability is:
Answers: 2
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Let x be a random variable that represents the length of time it takes a student to write a history...
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