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MATH302 Week 3 Test

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1. Question: A coin is flipped 30 times. What is the probability of getting 15 or more heads? Round answer to 4 decimal places. 2. Question: It is known that 50% of adult workers have a high school diploma. If a random sample of 8 adult workers is selected, what is the probability that less than 6 of them have a high school diploma? 3. Question: If random variable X has a binomial distribution with n=9 and P(success) =p= 0.4, find the standard deviation of X. 4. Question: If random variable X...

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  • uploaded  26-12-2023
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MATH302 Week 3 Knowledge Check Homework Practice Questions

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1. Question: Suppose a random variable, x, arises from a binomial experiment. If n = 14, and p = 0.13, find the standard deviation. Round answer to 4 decimal places. 2. Question: A coin is flipped 30 times. Find σ². Round to 1 decimal place. 3. Question: It is known that 50% of adult workers have a high school diploma. If a random sample of 6 adult workers is selected, what is the probability that 3 or more of them have a high school diploma? 4. Question: Suppose a random variable, x, arise...

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  •  • 14 pages • 
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MATH302 Week 2 Test

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1. Question: An instructor wants to compare spread (variation) of final grades of students in her online class and face-to-face class. The instructor selects 10 students randomly from each class and the following table shows the final grades of those students. See Attached Excel for Data. 2. Question: The lengths (in kilometers) of rivers on the South Island of New Zealand that flow to the Tasman Sea are listed below. Find the variance. See Attached Excel for Data. Use the Excel function to fin...

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MATH302 Week 2 Knowledge Check Homework Practice Questions

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1. Question: What was the sampling method that was used in the scenario? A study was done to determine the age, the number of times per week, and the duration (amount of time) of residents using a local park in San Antonio, Texas. The first house in the neighborhood around the park was selected randomly, and then the resident of every eighth house in the neighborhood around the park was interviewed. 2. Question: What kind of data is "the colors of the houses around the park" in the scenario? ...

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  •  • 8 pages • 
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  • uploaded  26-12-2023
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