HELP say u are in charge of a hotel, and u must go to the store and pick up all of the digits for the doors. u have 100 rooms. how many will u need for each number? if each cost $3.50, how much money will u need?

The random variable x is the number of occurrences of an event over an interval of ten minutes. it can be assumed that the probability of an occurrence is the same in any two-time periods of an equal length. it is known that the mean number of occurrences in ten minutes is 5.3. the appropriate probability distribution for the random variable

If sec theta = 5/3 and the terminal point determined by theta is in quadrant 4, then

Assume that the weights of quarters are normally distributed with a mean of 5.67 g and a standard deviation 0.070 g. a vending machine will only accept coins weighing between 5.48 g and 5.82 g. what percentage of legal quarters will be rejected? round your answer to two decimal places.