Bit rate is a measure of how many bits of data are transmitted per second. compared to videos with a higher bit rate, the same videos with a lower bit rate would most likely have

a 3d effect.
blocky, pixilated motion.
a larger file size.
a smoother flow of motion.

Acomputer has a two-level cache. suppose that 60% of the memory references hit on the first level cache, 35% hit on the second level, and 5% miss. the access times are 5 nsec, 15 nsec, and 60 nsec, respectively, where the times for the level 2 cache and memory start counting at the moment it is known that they are needed (e.g., a level 2 cache access does not even start until the level 1 cache miss occurs). what is the average access time?