Redshift distribution of the FRBs with S /N ≥ 1 observed by BINGO in 5 years (purple histogram) compared with all the cosmic bursts in 1 day (grey histogram). The exact cosmic distribution is shown with the black dashed line, the exact distribution for BINGO is represented by the solid purple distribution, and the shaded region is the exact 95% C.L. from the Poisson distribution. The red dashed line is the power log-normal distribution fitted from the 1000-year mock observation.