A manufacturer knows that their items have a normally distributed lifespan, with a mean of 13.9 years, and standard deviation of 0.6 years. If you randomly purchase one item, what is the probability it will last longer than 15 years? Round your answer to three decimal places. 2. A particular fruit's weights are normally distributed, with a mean of 734 grams and a standard deviation of 30 grams. If you pick one fruit at random, what is the probability that it will weigh between 646 grams and 791 grams. Round your answer to three decimal places.
A manufacturer knows that their items have a normally distributed lifespan, with a mean of 13.9 years, and standard deviation of 0.6 years. If you randomly purchase one item, what is the probability it will last longer than 15 years? Round your answer to three decimal places. 2. A particular fruit's weights are normally distributed, with a mean of 734 grams and a standard deviation of 30 grams. If you pick one fruit at random, what is the probability that it will weigh between 646 grams and 791 grams. Round your answer to three decimal places.
A manufacturer knows that their items have a normally distributed lifespan, with a mean of 13.9 years, and standard deviation of 0.6 years. If you randomly purchase one item, what is the probability it will last longer than 15 years? Round your answer to three decimal places. 2. A particular fruit's weights are normally distributed, with a mean of 734 grams and a standard deviation of 30 grams. If you pick one fruit at random, what is the probability that it will weigh between 646 grams and 791 grams. Round your answer to three decimal places.
1. A manufacturer knows that their items have a normally distributed lifespan, with a mean of 13.9 years, and standard deviation of 0.6 years. If you randomly purchase one item, what is the probability it will last longer than 15 years? Round your answer to three decimal places.
2. A particular fruit's weights are normally distributed, with a mean of 734 grams and a standard deviation of 30 grams.
If you pick one fruit at random, what is the probability that it will weigh between 646 grams and 791 grams. Round your answer to three decimal places.
Definition Definition Measure of central tendency that is the average of a given data set. The mean value is evaluated as the quotient of the sum of all observations by the sample size. The mean, in contrast to a median, is affected by extreme values. Very large or very small values can distract the mean from the center of the data. Arithmetic mean: The most common type of mean is the arithmetic mean. It is evaluated using the formula: μ = 1 N ∑ i = 1 N x i Other types of means are the geometric mean, logarithmic mean, and harmonic mean. Geometric mean: The nth root of the product of n observations from a data set is defined as the geometric mean of the set: G = x 1 x 2 ... x n n Logarithmic mean: The difference of the natural logarithms of the two numbers, divided by the difference between the numbers is the logarithmic mean of the two numbers. The logarithmic mean is used particularly in heat transfer and mass transfer. ln x 2 − ln x 1 x 2 − x 1 Harmonic mean: The inverse of the arithmetic mean of the inverses of all the numbers in a data set is the harmonic mean of the data. 1 1 x 1 + 1 x 2 + ...
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