Question

find the mode of all digits used in writing the natural numbers from 1 to 100

Answer 1

mean = 100×101/2=50×101=5050/100=50.5 median = 1/2 (100/2+100/2+1)= 1/2 (50+51) =101/2 = 50.5 mode = 3 median -2 mean = 3×50.5- 3× 50.5= 151.5 -101=50.5