Average Annual Salary of a Cosmetologist. As of 2008 the median salary for a cosmetologist in the United States was $11.13, which includes tips and commission. The lower 10th percentile earned on average $7.47 hourly, while the upper 90th percentile earned a median salary of $20.41 hourly.verage Annual Salary of a Cosmetologist. As of 2008 the median salary for a cosmetologist in the United States was $11.13, which includes tips and commission. The lower 10th percentile earned on average $7.47 hourly, while the upper 90th percentile earned a median salary of $20.41 hourly.
The median is the ((n + 1)/2)th item, where n is the number of values. For example, for the list {1, 2, 5, 7, 8}, we have n = 5, so the median is the ((5 + 1)/2)th item.
Calculate mean/avaerge, range, median and mode for the data 1, 5, 8, 10, 7 and 5 ? Step 1 : Ascending Order = 1, 5, 5, 7, 8, 10 Step 2 : To find Mean Average = ( 1 + 5 + 5 + 7 + 8 + 10 ) / 6 =36 / 6 Mean = 6 Step 3 : To find Median Middle value = ( 5 + 7 ) / 2 = 12 / 2 Median = 6 Step 4 : To find Mode