- What is a normal distribution and why is it useful for understanding probabilities and statistics?...

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Statistics

- What is a normal distribution and why is it useful forunderstanding probabilities and statistics? Provide an example of anormal distribution and explain why it can be categorized as anormal distribution.

- What is the difference between a standard normal distributionand a normal distribution?

- How do we standardize a normal distribution?

- What is a z-score? How do we calculate the z-score for anormal variable?

- How could the standard normal (z) distribution table be usedto calculate the probability of:

a) the cumulative area less than a z-score?

b) the cumulative area greater than a z-score?

c) the area between two z-scores?

Directions:  you are required to“Start a New Thread” by Day 3. Initial post should be 200-300words

Answer & Explanation Solved by verified expert
3.6 Ratings (565 Votes)
A normal distribution which appears as a bell curve is a probability distribution that is symmetric about the mean Here mean is zero and the standard deviation is 1 It is useful in probabilities and statistics because it can be applied in natural phenomena An example is the Height of girls here normal distribution    See Answer
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