Here is a data set 36,48,67,91 what is the mean median mode range plz exams tommorow stuck on stupid

Range: your highest and lowest number and subtract91-36 = 55
Mode: is the number that shows up the Most Often you don't have one in this.
Median: put all your numbers from least to greatest and cross of one number at a time at each end if you come to 2 numbers in the middle add them up and divide them by 2 48+67=115...115/ 2 =57.5
Mean; Add all the numbers up and divide them by how many numbers are there36+48+67+91=242...242/ 4 =60.5