A computer system uses passwords that consist of 4 letters followed by an even digit. (a) How many passwords are possible? Write S.
(b) How many passwords consist of 3X’s and Y’s and end in a single digit? Write S.
(c) If any forget password but remember that it has the characteristics described in part (b) what is the chance that one will guess the password correctly on the first attempt?

Me on this online 24 game! you have to add, subtract, multiply, or divide any of these to equal !

Use the frequency distribution, which shows the number of american voters (in millions) according to age, to find the probability that a voter chosen at random is in the 18 to 20 years old age range. ages frequency 18 to 20 5.9 21 to 24 7.7 25 to 34 20.4 35 to 44 25.1 45 to 64 54.4 65 and over 27.7 the probability that a voter chosen at random is in the 18 to 20 years old age range is nothing. (round to three decimal places as needed.)

2pointswhich of the following appear in the diagram below? check all that apply.d a. zcdeов. сеo c. aéo d. zdce