Due to a consumer protection law which penalizes manufacturers if their products are under filled (contains less than the advertised amount), some manufacturers deliberately overfill slightly. For example, the label on the container of Morton Iodized Salt shows its volume to be 26 ounces. Suppose the distribution of volumes of salt is approximately normal with a mean 26.9 ounces and a standard deviation of 0.51 ounces. Find the probability a randomly selected container has at most 26.0 ounces. Express the answer as a decimal value rounded to the nearest thousandth.

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 + ...