7 days add them up and divide by 7 50+56+52+46+48+42+38=332 divide that by 7 47.428 about
distance each is from the mean 50 is 2.572 from it 56 is 8.572 from it 52 is 4.572 from it 46 is 1.428 from it 48 is 0.562 from it 42 is 5.428 from it 38 is 9.428 from it
add those and average them (2.572+8.572+4.572+1.428+0.562+5.428+9.428)/7=4.652
