Suppose a company needs temporary passwords for the trial of a new payroll software. each password will have two letters, followed by one digit, followed by one letter. the letter will not be used. so, there are letters and digits that will be used. assume that the letters can be repeated. how many passwords can be created using this format?

Unaware that 35% of the 10000 voters in his constituency support him, a politician decides to estimate his political strength. a sample of 200 voters shows that 40% support him. a. what is the population? b. what is the parameter of interest? state its value c. what is the statistics of the interest? state its value d. compare your answers in (b) and (c) is it surprising they are different? if the politician were to sample another 200 voters, which of the two numbers would most likely change? explain