Z-Scores & Binomial Probabilities

Given a data set with a mean of 48 and a standard deviation of 7, convert the data point 61 into a Z-score

Given a data set with a mean of 48 and a standard deviation of 7, what percentage of the data set is BELOW 51?

Given a data set with a mean of 48 and a standard deviation of 7, what percentage of the data set is ABOVE 43?

Given a data set with a mean of 48 and a standard deviation of 7, what percentage of the data set is BETWEEN 50 and 60?

Given a data set with a mean of 48 and a standard deviation of 7, what data point would be the value at the 45th percentile (rounded to the nearest tenth)?

(a)  

There is a 78% chance that a customer booking a flight with United Airlines books a domestic (within the United States) flight. What is the probability that 3 out of the next 4 randomly selected customers booked a domestic flight with United airlines?

There is a 78% chance that a customer booking a flight with United Airlines books a domestic (within the United States) flight. What is the probability that at most 2 out of the next 4 randomly selected customers booked a domestic flight with United airlines?

There is a 78% chance that a customer booking a flight with United Airlines books a domestic (within the United States) flight. What is the probability that someone out of the next 4 randomly selected customers booked a domestic flight with United airlines? GIVE YOUR ANSWER AS A DECIMAL ROUNDED TO THREE PLACES

(a)