In a class of 140 students numbered from 1 to 140. All even numbered students opted Mathematics course those whose number is divisible by 3 opted physics course & those whose
number is divisible by 5 opted chemistry course. The number of students who did not opted any
of three courses is​

Do more republicans (group a) than democrats (group b) favor a bill to make it easier for someone to own a firearm? two hundred republicans and two hundred democrats were asked if they favored a bill that made it easier for someone to own a firearm. how would we write the alternative hypothesis?

Someone me what is the area of this figure? 18m 18m 8m 16m

Using pert, adam munson was able to determine that the expected project completion time for the construction of a pleasure yacht is 21 months, and the project variance is 4. a) what is the probability that the project will be completed in 17 months? b) what is the probability that the project will be completed in 20 months? c) what is the probability that the project will be completed in 23 months? d) what is the probability that the project will be completed in 25 months? e) what is the due date that yields a 95% chance of completion?