Some money orders have serial numbers that consist of a 10-digit number followed by a check digit. the check digit is chosen to be the sum of the first 10 digits mod 9. determine the check digit for the given money order serial number. 2552916855−?

3

Step-by-step explanation:

first calculate the sum of the first 10-digits

now, in order apply mod 9. we can subtract the above number by the closest multiple of 9.

45 is the multiple of 9 that is closest to our sum, i.e 48

a framing bias

step-by-step explanation:

rodrigo is subject to a framing bias i believe.