Radioactive mass A emits particles at a mean rate of 19 per minute, and radioactive mass B emits particles at a mean rate of 24 per minute. a. What is the probability that fewer than 200 particles are emitted by both masses together in a five minute time period?
b. What is the probability that mass B emits more particles than mass A in a two-minute time period?

According to the 2008 u.s. census, california had a population of approximately 4 × 10^7 people and florida had a population of approximately 2 × 10^7 people. which of the following is true? a. the population of california was approximately two times the population of florida. b. the population of florida was approximately twenty times the population of california. c. the population of florida was approximately two times the population of california. d. the population of california was approximately twenty times the population of florida.