you are playing a board game that uses an hourglass timer filled with sand. the percent y of sand remaining in the timer after x miinutes is y=-0.25x+1. After how many minutes is the timer 25% full?

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.