Math Problem Statement
Suppose a brewery has a filling machine that fills 12 ounce bottles of beer. It is known that the amount of beer poured by this filling machine follows a normal distribution with a mean of 12.27 ounces and a standard deviation of 0.06 ounce. Find the probability that the bottle contains between 12.17 and 12.23 ounces.
0.8351
0.20.47
0.8475
0.1649
Solution
To find the probability that a bottle contains between 12.17 and 12.23 ounces, we will use the properties of the normal distribution. Given:
- Mean () = 12.27 ounces
- Standard deviation () = 0.06 ounces
We need to find the probability .
- Convert the values 12.17 and 12.23 to their corresponding z-scores using the formula:
For :
For :
- Use the standard normal distribution table (or a calculator) to find the probabilities corresponding to these z-scores.
For :
For :
- The probability that the bottle contains between 12.17 and 12.23 ounces is the difference between these probabilities:
Therefore, the correct answer is:
Would you like more details or have any questions?
Here are 5 numbered questions for you to ask:
- How do you find z-scores for a given data set?
- What is the significance of the standard normal distribution table?
- How do you calculate probabilities for non-standard normal distributions?
- What are some real-world applications of normal distribution?
- How does changing the mean or standard deviation affect the normal distribution?
Tip: When dealing with normal distributions, always remember to convert raw scores to z-scores to utilize the standard normal distribution table effectively.
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Math Problem Analysis
Mathematical Concepts
Normal Distribution
Z-score
Formulas
Z-score formula: z = (X - μ) / σ
Theorems
Properties of Normal Distribution
Suitable Grade Level
College Level
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