Explain what is mean, median,mode and range?
Mean: The mean is the average value of a set of numerical data. It is found by adding up all the values in the set and dividing the sum by the total number of values. The mean is useful for finding the typical or central value of a data set.
Median: The median is the middle value in a sorted list of numerical data. To find the median, the data set must be arranged in numerical order. If there is an odd number of values, the median is the middle value. If there is an even number of values, the median is the average of the two middle values. The median is useful when there are extreme values in the data set that could skew the overall picture.
Mode: The mode is the value or values that appear most frequently in a data set. In other words, it is the value(s) with the highest frequency. If no value is repeated, the data set is said to have no mode. The mode can be useful for identifying the most common element in a set of data.
Range: The range is the difference between the largest and smallest values in a data set. It provides a measure of the spread or variability of the data. To find the range, subtract the smallest value from the largest value. The range provides a quick overview of the spread of data and is useful for assessing the variability within a data set.