Mean & Standard Deviation Calculator for Frequency Table & Grouped Data

Occurance(x):(in separated lines) Frequency of Occurance(f)


    Sample Data
    Population

Calculation Worksheet

Occurance(x)Frequency(f)f*x(x-mean)(x-mean)^2f*(x-mean)^2
155-1.4832.19910.993
21224-0.4830.2332.797
38240.5170.2682.14
43121.5172.3026.906
5002.5176.3370
6003.51712.3710
7174.51720.40520.405
Total ->2972--43.241

Answer:

Mean = 2.483

Standard Deviation = 1.243

Variance = 1.544

Formula for Sample Data

sd for a sample data

Formula for Population Data

Standard Deviation for a population