what is the mean median mode and range

Mean, median, mode, and range are all measures of central tendency in statistics. The mean is the average value of a data set and is found by adding up all of the numbers and dividing by the number of numbers in the data set. The median is the middle number of a data set when the numbers are arranged in order. If there are an even number of numbers, the median is the average of the two middle numbers. The mode is the number in a data set that occurs most frequently. The range is the difference between the largest and smallest numbers in a data set. It tells us how spread out the data is.