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Questions and Answers
What is the main difference between discrete random variables and continuous random variables?
What is the main difference between discrete random variables and continuous random variables?
- Discrete random variables are used for continuous data, while continuous random variables are used for discrete data.
- Discrete random variables do not involve probabilities, while continuous random variables do.
- Discrete random variables have a countable number of values, while continuous random variables assume an infinitely large number of values. (correct)
- Discrete random variables assume an infinitely large number of values, while continuous random variables have a countable number of values.
What is the function that describes the probability of each outcome in a discrete random variable?
What is the function that describes the probability of each outcome in a discrete random variable?
- Expected Value Function
- Normal Distribution Function
- Probability Mass Function (correct)
- Variance Function
What does the Central Limit Theorem state?
What does the Central Limit Theorem state?
- As the sample size decreases, the sampling distribution of the sample mean approaches a normal distribution.
- As the sample size increases, the sampling distribution of the sample mean becomes more skewed.
- As the sample size increases, the sampling distribution of the sample mean approaches a uniform distribution.
- As the sample size increases, the sampling distribution of the sample mean approaches a normal distribution. (correct)
What does the Z-Score measure in a normal distribution?
What does the Z-Score measure in a normal distribution?
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How are confidence intervals determined?
How are confidence intervals determined?
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What does variance measure in a probability distribution?
What does variance measure in a probability distribution?
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Which function provides the average of the probability mass function?
Which function provides the average of the probability mass function?
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What is described by a normal distribution in statistical analysis?
What is described by a normal distribution in statistical analysis?
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What does a Sampling Distribution describe?
What does a Sampling Distribution describe?
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What does Length of Confidence Interval indicate about estimation?
What does Length of Confidence Interval indicate about estimation?
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