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Gre4nikov [31]
3 years ago
10

An apple juice producer buys all his apples from a conglomerate of apple growers in one northwestern state. The amount of juice

obtained from each of these apples is approximately normally distributed with a mean of 2.25 ounces and a standard deviation of 0.15 ounce. What is the probability that a randomly selected apple will contain more than 2.50 ounces? .9525 .4525 .0475 .5474
Mathematics
1 answer:
Ne4ueva [31]3 years ago
3 0

The probability that randomly selected apple will contain more than 2.50 \text{ }\text{ounce} juice is \fbox{0.0475}.

Further explanation:

Given:

The mean \mu of apple juice is 2.50 \text{ }\text{ounce}.

The standard deviation \sigma of apple juice is 0.15 \text{ }\text{ounce}.

Calculation:

The random variable \bar{X} follow Normal distribution with parameter mean and variance.

Normal distribution is symmetric and it bell shaped curve.

\bar{X} \sim \text{Normal}(\mu,\sigma^{2} )

Variance is square of standard deviation.

Variance = \sigma^{2}

Variance = 0.15^{2}

Variance = 0.0225

\bar{X}\sim \text{Normal}(\mu,\sigma^{2} )

Substitute 2.25 for \mu and 0.0225 for \sigma^{2}

\bar{X}\sim\text {Normal}(2.25,0.0225)

The probability that randomly selected apple will contain more than 2.50 can be calculated by applying the central Limit Theorem as,

\text{Probability}=P(\bar{X}>2.50)}\\\text{Probability}=P\left(\dfrac{{\bar{X}-\mu}}{\sigma}>\dfrac{{2.50-2.25}}{0.15}\right)\\\text{Probability}=P\left(Z}>\dfrac{{0.25}}{0.15}\right)\\ \text{Probability}=P\left(Z}>\dfrac{{5}}{3}\right)\\\text{Probability}=P(Z}>1.67})

The Normal distribution is symmetric.

Therefore, the probability of greater than 1.67 is equal to the probability of less than 1.67.

P(Z>1.67})=1-P(Z1.67})=1-0.9525\\P(Z>1.67})=0.0475

Hence, the probability that randomly selected apple will contain more than 2.50 \text{ }\text{ounce} juice is \fbox{0.0475}.

Learn More:

1. Learn more about Unit conversion brainly.com/question/4837736

2. Learn more about Range of a function brainly.com/question/1435353

3. Learn more about Graph representation brainly.com/question/2491745

Answer Details:

Grade: College Statistics

Subject: Mathematics

Chapter: Probability and Statistics

Keywords:

Probability, Statistics, Apple juice, Normal distribution, Normal approximation, Central Limit Theorem, Z-table, Mean, Standard deviation, Symmetric, Variance, Conglomerate of Apple, Northwestern.

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