Consider the situation of a polling company which wants to predict the outcome of an upcoming election. they send their employees to stand on street corners in the capital city between 9 and 12 every week-day, with instructions to stop passers-by and ask them which party they will be voting for in the election. does the data collected provide a true reflection of the likely outcome of the election? explain why or why not?

Ihave buncha points. does anyone want any?

When making changes to optimize part of a processor, it is often the case that speeding up one type of instruction comes at the cost of slowing down something else. for example, if we put in a complicated fast floating-point unit, that takes space, and something might have to be moved farther away from the middle to accommodate it, adding an extra cycle in delay to reach that unit. the basic amdahl's law equation does not take into account this trade-off. a. if the new fast floating-point unit speeds up floating-point operations by, on average, 2ă—, and floating-point operations take 20% of the original program's execution time, what is the overall speedup (ignoring the penalty to any other instructions)? b. now assume that speeding up the floating-point unit slowed down data cache accesses, resulting in a 1.5ă— slowdown (or 2/3 speedup). data cache accesses consume 10% of the execution time. what is the overall speedup now? c. after implementing the new floating-point operations, what percentage of execution time is spent on floating-point operations? what percentage is spent on data cache accesses?

How often does colleges update the cost of attendance on their website? . a)every two years b) every four years c) every year d) every semester