Suppose 42% of the population of a certain city support candidate A for mayor. Fifty people in the city are randomly selected and surveyed.
What is the probability that at most 15 of the people surveyed support candidate
A? Round your answer to 4 decimal places.

Acircle has a circumference of 28.36 units what is the diameter of the circle

You're locked out of your house. the only open window is on the second floor, 25 feet above the ground. there are bushes along the edge of the house, so you will need to place the ladder 10 feet from the house. what length ladder do you need to reach the window?

Aclassroom is made up of 11 boys and 14 girls. the teacher has four main classroom responsibilities that she wants to hand out to four different students (one for each of the four students). if the teacher chooses 4 of the students at random, then what is the probability that the four students chosen to complete the responsibilities will be all boys?