8 minutes whats the distance she walks

What is the solution of log2  (3x  -  7)  =  3? 4 5

According to the data set, where should the upper quartile line of the box plot be placed?

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?