It's your friend's birthday, and you want to use binary numbers for the candles on their cake. Your plan is to use green candles to mean "on" and gray candles to mean "off". What's the least number of candles you need in order to represent the age 18?

Given a normal distribution with µ =50 and σ =4, what is the probability that 5% of the values are less than what x values? between what two x values (symmetrically distributed around the mean) are 95 % of the values? instructions: show all your work as to how you have reached your answer. don’t simply state the results. show graphs where necessary.