Average - statistics examples

Calculate average of file:
{90, 72, 6, 93, 4, 58, 0, 85, 70, 99} =
{70, 58, 84, 4, 34, 70, 1, 95, 70} =
{95, 73, 41, 79, 53, 92, 59, 67, 75} =
{92, 16, 35, 6, 52, 72, 54, 62, 86, 46} =
{44, 64, 36, 45, 68, 32, 89, 10, 96, 70} =
{96, 44, 60, 75, 73, 0, 98, 75, 4, 19} =
{90, 68, 51, 92, 99, 48, 100, 41, 97, 78} =
{62, 29, 49, 58, 60, 72, 97, 17, 83, 88} =
{13, 72, 60, 29, 45, 8, 59, 9, 53} =
{96, 92, 52, 40, 8, 19, 81, 46, 55, 85} =