Use the following information to answer the next eight exercises Carbon 14 is a radioactive element with a half life of about 5 730 years Carbon 14 is said to decay exponentially The decay rate is 0 000121 We start with one gram of carbon 14 We are interested in the time years it takes to decay carbon 14 64 What is being measured here 65 Are the data discrete or continuous 66 In words define the random variable X 67 What is the decay rate m 68 The distribution for X is