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MatroZZZ [7]
3 years ago
8

Your company produces electrical components for a government project that are normally distributed with a mean frequency of 100

MHz and a variance of 9 MHz. The government accepts product that falls between 95.06 MHz and 105.88 MHz. What percent of our product will be acceptable to the government? Note that
a. 68.00%
b. 95.00%
c. 92.50%
d. 97.20%
e. 90.00%
Mathematics
1 answer:
zalisa [80]3 years ago
4 0

Answer:

Option C) 92.50%

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 100 MHz

Variance = 9 MHz

\sigma^2 = 9\\\sigma = 3

We are given that the distribution of frequency is a bell shaped distribution that is a normal distribution.

Formula:

z_{score} = \displaystyle\frac{x-\mu}{\sigma}

P( product that falls between 95.06 MHz and 105.88 MHz)

P(95.06 \leq x \leq 105.88)\\\\ = P(\displaystyle\frac{95.06 - 100}{3} \leq z \leq \displaystyle\frac{105.88-100}{3})\\\\ = P(-1.645 \leq z \leq 1.96)\\\\= P(z \leq 1.96) - P(z < -1.645)\\= 0.975 - 0.05 =0.925 = 92.5\%

92.5% of product will be acceptable to the government.

Thus, the correct answer is

Option C) 92.50%

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