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1. Give one similarity and one difference between a normal distribution and a uniform distribution.

2. Explain the following terms as they relate to a normal distribution: z-score, area, probability
3. What is the standard normal distribution and what is its purpose?

User FrianH
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Final answer:

A normal distribution and a uniform distribution are both continuous probability distributions. A normal distribution is bell-shaped and symmetrical, while a uniform distribution is rectangular. In a normal distribution, terms like z-score, area, and probability are used to measure and interpret the distribution. The standard normal distribution has a mean of 0 and a standard deviation of 1, and it is used for standardizing data across different normal distributions.

Step-by-step explanation:

1. Similarity and difference between normal and uniform distributions:

A similarity between a normal distribution and a uniform distribution is that both are continuous probability distributions. They represent the spread and likelihood of different values occurring within a given range.

A difference between a normal distribution and a uniform distribution is the shape of the distribution. A normal distribution is bell-shaped and symmetrical, while a uniform distribution is rectangular and its probability is evenly distributed across the range.

2. Terms related to the normal distribution:

Z-score: A z-score measures how many standard deviations a value is away from the mean in a normal distribution. It allows for comparison between different data sets with different means and standard deviations.

Area: In the context of a normal distribution, area refers to the probability of a value falling within a certain range of the distribution. It can be calculated using the standard normal distribution table or by using statistical software.

Probability: Probability in the context of a normal distribution refers to the likelihood of a specific event or value occurring within the distribution. It is represented as a decimal or a percentage.

3. Standard normal distribution:

The standard normal distribution is a specific type of normal distribution with a mean of 0 and a standard deviation of 1. It is commonly used for comparing and standardizing data. By converting values to z-scores based on the standard normal distribution, we can make comparisons and calculate probabilities across different normal distributions.

User Middus
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