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4vir4ik [10]
3 years ago
13

The weights of boxes of a certain brand of pasta follow an

Mathematics
1 answer:
anygoal [31]3 years ago
7 0

Answer:

d) 16%

Step-by-step explanation:

The empirical rule states that for a normal distribution population with a mean (μ) and standard deviation (σ), the following conditions occur:

  1. 68% falls within one standard deviation μ ± σ
  2. 95% falls within two standard deviation μ ± 2σ
  3. 99.7% falls within three standard deviation μ ± 3σ

Given μ = 16 ounce and σ = 0.05 ounce.

68% falls within one standard deviation = μ ± σ = 16 ± 0.05 = (15.95, 16.05)

the number that falls outside one standard deviation = 100% - 68% = 32%

Therefore percentage of boxes have weights that are more than 1 standard  deviation above the mean = 32% / 2 = 16%

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