In a particular country on the African continent, 35% of the population is estimated to have at least one smart phone. If a small sample of 40 people is selected from the population for a statistical investigation, Use the Binomial distribution to estimate the probability of the number of people in the sample that have at least one smart phone is; a) at most 15; b) more than 12 but fewer than 18; c) exactly equal to the mean of the distribution
In a particular country on the African continent, 35% of the population is estimated to have at least one smart phone. If a small sample of 40 people is selected from the population for a statistical investigation, Use the Binomial distribution to estimate the probability of the number of people in the sample that have at least one smart phone is; a) at most 15; b) more than 12 but fewer than 18; c) exactly equal to the mean of the distribution
In a particular country on the African continent, 35% of the population is estimated to have at least one smart phone. If a small sample of 40 people is selected from the population for a statistical investigation, Use the Binomial distribution to estimate the probability of the number of people in the sample that have at least one smart phone is; a) at most 15; b) more than 12 but fewer than 18; c) exactly equal to the mean of the distribution
In a particular country on the African continent, 35% of the population is estimated to have at least one smart phone. If a small sample of 40 people is selected from the population for a statistical investigation, Use the Binomial distribution to estimate the probability of the number of people in the sample that have at least one smart phone is; a) at most 15; b) more than 12 but fewer than 18; c) exactly equal to the mean of the distribution
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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