The Birthday Problem This classic problem wonders how many people need to be in a group in order to have a greater
than 50% chance that at least two of them share a birthday. Answer each of the following
questions below to explore this problem.
1. To find the probability that “at least two people share a birthday” we will examine its
complement. How would you describe this complement in words?
2. We’ll begin by looking at a group of two people. What is the probability that these two
people do NOT share a birthday?
3. Given your answer to question #2, what is the probability that these two people DO
share a birthday?

Using the quadratic formula find the zeros of the given polynomial -5x^2+3x-11

3382-299=3383- ? fill in the blank?

An engineer is going to redesign an ejection seat for an airplane. the seat was designed for pilots weighing between 120 lb and 161 lb. the new population of pilots has normally distributed weights with a mean of 125 lb and a standard deviation of 28.1 lb. a)if a pilot is randomly selected, find the probability that his weight is between 120 lb and 161 lb. the probability is approximately? b. if 36 different pilots are randomly selected, find the probability that their mean weight is between 120 lb and 161 lb. the probability is approximately? c. when redesigning the ejection seat, which probability is more relevant? . part (b) because the seat performance for a single pilot is more important. b. part (b) because the seat performance for a sample of pilots is more important. c. part (a) because the seat performance for a sample of pilots is more important. d. part (a) because the seat performance for a single pilot is more important.