9- Jenny wants to buy a new camera. She found 4 stores that carry the camera she wants. The mean price of the camera is $135 and the range of prices is $25.
Which are possible prices for the camera?
a. $110, $135, $115, $120
b. $120, $145, $130, $130
c. $140, $135, $160, $150
d. $125, $135, $150, $130

The depth of a lake at a certain point, wich is a function of the distance of that point from shore, is 30 feet.

Which of the following disjunctions is true? 4 + 4 = 16 or 6 - 5 = 11 4 · 3 = 7 or 3 - 2 = 5 8 - 5 = 13 or 7 · 2 = 12 7 - 4 = 11 or 6 + 3 = 9

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?