Find the mean, median, and mode of the following set.
27, 20, 34, 37, 21, 42, 39
mean: 31.4; median: 35.5; mode: 37
mean: 31.4; median: 34; no mode
mean: 36.7; median: 34; no mode
mean: 36.7; median: 37; no mode

i got the median, i only need the mode (if there is one)

We had:
27,20,34,37,21,42,39
We just need to order the number from least to greatest:
20,21,27,34,37,39,42
Means equal average which means that you had to all numbers divided with total numbers
Mean:31.4

Median means middle number. In this case, we only see one number which is 34
Median:34

Mode means that one number repeated many times,but we don't see any number in this repeated more than one times, which means there is no mode. Hope it help!