3german shepherds and 3 siberian huskies enter a dog show. at the end of the show a ranking of the 6 dogs is provided. assume that all rankings are equally likely. let x denote the highest ranking obtained by a german shepherd. for example, x = 1 if a german shepherd is the show winner. a) what values can x take? b) write the pmf of x.

Si la base de un triángulo isósceles mide 70 m y el ángulo opuesto a ésta mide 58°; entonces ¿cuánto mide la altura de dicho triángulo? a) 21.87 m. b) 40.01 m. c) 43.74 m. d) 63.14 m.

Which of the following represents the length of a diagonal of this trapezoid?

Assume that there is a 11% rate of disk drive failure in a year. a. if all your computer data is stored on a hard disk drive with a copy stored on a second hard disk drive, what is the probability that during a year, you can avoid catastrophe with at least one working drive? b. if copies of all your computer data are stored on four independent hard disk drives, what is the probability that during a year, you can avoid catastrophe with at least one working drive?