Suppose a teacher assigns an average of 9.3 homework problems per learning target. Find: a) The probability that the teacher assigns 4 homework problems for LT5A. Round your answer to 4 decimal places.

b) The probability that that the teacher assigns 18 homework problems for LT5B. Round your answer to 4 decimal places.

What would be considered a "usual" number of homework problems assigned? Use the definition of usual as μ ± 2⋅ σ

1) neither are usual
2) 4
3) 18
4) both are usual