Math Problem Statement

Flaws occur in the interior of plastic used for automobiles according to a Poisson distribution with a mean of 0.02 flaw per panel. If 50 panels are inspected what is the probability that there are no flaws? * 1 point 0.8187 41 panels 0.9802 49 panels

Solution

To solve this problem, we can use the Poisson distribution formula, which is given by:

P(X=k)=eλλkk!P(X = k) = \frac{e^{-\lambda} \lambda^k}{k!}

Where:

  • λ\lambda is the mean number of occurrences,
  • kk is the actual number of occurrences,
  • ee is the base of the natural logarithm (approximately 2.71828).

Given Data:

  • Mean number of flaws per panel λ=0.02\lambda = 0.02
  • Number of panels n=50n = 50

First, we calculate the expected number of flaws over 50 panels:

λ50=λ×n=0.02×50=1\lambda_{50} = \lambda \times n = 0.02 \times 50 = 1

So, λ50=1\lambda_{50} = 1.

We need to find the probability of having 0 flaws (i.e., k=0k = 0) in 50 panels:

P(X=0)=e1×100!=e11=e10.3679P(X = 0) = \frac{e^{-1} \times 1^0}{0!} = \frac{e^{-1}}{1} = e^{-1} \approx 0.3679

Therefore, the probability that there are no flaws in 50 panels is approximately 0.3679.

However, the given options seem to refer to a different interpretation, possibly involving cumulative probabilities or rounding. The closest choice is not provided among the answer options, which suggests a reconsideration of the expected value might be intended by the question, but based on the clear instructions, the probability calculated is:

0.3679.

Would you like more details or have further questions?

Relative Questions:

  1. What is the Poisson distribution used for in statistics?
  2. How would you calculate the probability of having exactly one flaw in 50 panels?
  3. What is the expected number of flaws if 100 panels are inspected?
  4. How does increasing the mean λ\lambda affect the Poisson distribution?
  5. What is the significance of ee in the Poisson distribution formula?

Tip: Always ensure the units match when applying Poisson distribution to avoid errors in your mean calculations.

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Math Problem Analysis

Mathematical Concepts

Probability Theory
Poisson Distribution

Formulas

Poisson distribution formula

Theorems

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Suitable Grade Level

Advanced