averages

• The mean is the average value.
• The median is the middle number when all numbers are arranged from smallest to largest.
• Mean = sum of all observations / total number of observations
• Range = difference between highest and lowest values
• Mode = most frequently occurring data point
• Median = (n+1)/2th observation, where n is the total number of observations
• Mode = most frequently occurring value(s)
• Quartiles divide the dataset into four equal parts.
• Averages can be used to summarize large sets of data quickly and easily.
• Mean = sum of all numbers divided by the count of those numbers
• Interquartile range (IQR) measures variability within the central part of the distribution.
• The first quartile (Q1) divides the lower half from the upper half.
• The mean is calculated by adding up all the scores and dividing them by the number of scores.