REAL ANSWERS Question:Static friction percent error& trying to find the expected static friction value

Info: How do you calculate the static friction percent error for each?

Weight is 277.4g
Static force magnitude 1.1N
Experimented Static Coefficient .5

Weight is 799.8g
Static force magnitude 3.5N
Experimented Static Coefficient .45

What is known:
Ik it’s ((experimented-expected)/expected)* 100 to get the percent error but I don’t know how to calculate the expected

Q: What is the EXPECTED static COEFFICIENTS (decimal 0-1)for both weights and what is the percent error? How did you get to it?

(.5-(expected))/expected

(.45-(expected))/expected