To calculate the arithmetic mean sum all the data points in a sample space and then divide by the number of elements. Logarithm log lg ln If b ac c logab a b c are real numbers and b 0 a 0 a 1 a is called base of the logarithm. 8 9 10 10 10 11 11 11 12 13 10 105 10 105 The median is the middle value.
In other words it is the sum divided by the count.
X n are the values of variable x then the arithmetic mean usually denoted by x or E x is given by x x 1 x 2 x 3. The mean of a probability distribution is the long-run arithmetic average value of a random variable having that distribution. If you wish to find any term also known as the nth term in the arithmetic sequence the arithmetic sequence formula should help you to do so. The symbol for Standard Deviation is s the Greek letter sigma.