Using the information from section 1.2.3, what would be the number of suspected pairs if the following changes were made to the data (and all other numbers remained as they were in that section)?

a) the number of days of observation was raised to 2000.

b) the number of people observed was raised to 2 billion (and there were therefore 200,000 hotels).

c) we only reported a pair as suspect if they were at the same hotel at the same time on three different days.

What is the item which could be matched with a statement below? software installed on a computer that produces pop-up ads using your browser an example of social engineering malware loads itself before the os boot is complete type of spyware that tracks your keystrokes, including passwords windows key + l the practice of tricking people into giving out private information or allowing unsafe programs into the network or computer when someone who is unauthorized follows the employee through a secured entrance to a room or building a type of malware that tricks you into opening it by substituting itself for a legitimate program a computer that has been hacked, and the hacker is using the computer to run repetitive software in the background without the user's knowledge an infestation designed to copy itself repeatedly to memory, on drive space, or on a network