1. Enter your data in L1.
In this case, the problem said the Checksum was 8,747.
![Enter your data in L1. ](https://media.screensteps.com/image_assets/assets/001/997/888/original/F161E032-0379-40D8-BF17-47F34CF957B6.png)
2. To verify if you have the right checksum, go to: [STAT] "CALC" "1: 1-VAR STATS" [ENTER].
Since the sum of the data points was the same as the checksum given in the problem, it is likely that the data was inputted correctly.
![To verify if you have the right checksum, go to: [STAT] "CALC" "1: 1-VAR STATS" [ENTER].](https://media.screensteps.com/image_assets/assets/001/997/889/original/CA2BAF61-9E8D-404F-9C71-2076AA974E31.png)