mean is the average
median is the middle number when you arrange them in increasing order
mode is the number that appears most often
range is the distance between the largest and smallest number
mean of 86,90,93,85,79, and 92=(86+90+93+85+79+92)/6=87.5
median: since there are an even number of terms, there is no middle term
mode: there is no number that appears more than once (all of them appear as frequently as the others) there is no mode
range
subtract smallest number from largest number
93-79=24
range=24
Mean=87.5
Median=none
Mode=none
Range=24
