Fol-lowing presentation of the digits, the vigilance task started.Memory for these digits was only tested once, at the end ofthe vigilance task (40 min later). Immediately after the lasttrialinthevigilancetask,adigitwaspresentedatthecenterof the display for 153 ms. Observers were required to ...
Mean Median Mode Calculator. In statistics, mean is the average of all the data. Median is the middle value of the set of data and mode is the one that occurs most often in a set of data. The difference between the largest and smallest data is the range. This online calculator helps you to find the mean, median, range and mode of the values you entered.
mean may be the simple average or it may represent value midway between two extremes. median applies to the value that represents the point at which there are as many instances above as there are below. norm means the average of performance of a significantly large group, class, or grade.