Me with an easy percentage problem. in a semiconductor companies quality control test machine found that 22 out of a sample of us 600 computer chips were defective how many of the three 36,000 computer chips the company makes each year would you expect to be

For which of the following counts would a binomial probability model not be reasonable? a)the number of people in a classroom born in januaryb) the number of people in a classroom with red hair c) the number of people admitted to a hospital in a day with a particular disease d) the number of heart beats in a one-minute perio.

Which one ? is the answer and how to find this answer

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.