MUST ANSWER NOW Letters are sent by second class post unless they are
marked first class.
Over a long period of time it has been established that
50% of letters to be posted are marked first class.
In a random selection of 12 letters to be posted,
find the probability that the number marked first class is
(a) at least 2.
(b) fewer than 10.

Pleasseee important quick note: enter your answer and show all the steps that you use to solve this problem in the space provided. use the circle graph shown below to answer the question. a pie chart labeled favorite sports to watch is divided into three portions. football represents 42 percent, baseball represents 33 percent, and soccer represents 25 percent. if 210 people said football was their favorite sport to watch, how many people were surveyed?