Statistic

4. The Los Angeles Times reported that 80% of airline passengers prefer to sleep on long flights rather than watch movies, read, etc. Consider randomly selecting 25 passengers from a particular long flight. a) Write the distribution and appropriate parameters. b) What is the probability that exactly 18 of those selected passengers prefer sleeping? Include calculator keystrokes, c) What is the probability that all passengers selected prefer to sleep on the long flight? d) What is the average number of passengers that prefer sleeping on the long flight and calculate the standard deviation of X