1. Which of the following statements is not true?
The most appropriate measure of central tendency for highly-skewed data distributions is the median
The variance is always greater than the standard deviation.
A 10% trimmed mean of a given data is solved by removing the largest 10% and smallest 10% of the data, then computing for the mean.
The coefficient of variation is the ratio between the mean and the standard deviation.
A normal distribution has a mean of 50 and a standard deviation of 4. Please i want to determine the value below which 95% of the observations will occur.
If X is a random variable with an exponential distribution
, find the probability density function of the random variable Y that is defined by .
Five males with as X-linked genetic disorder have one child each. The random variable x is the number of children among the five who inherit the X-linked genetic disorder.