The distribution of blood type in the us is roughly 38% type A, 12% type B, 3% type AB,47% type O. An individual is brought into an emergency room and is to be blood-type. What is the probability that the typr will be A, AB or O? Ans. (a) 0.25 (b)0.88 (c)0.75 (d) 0.54

Acompressor compresses a gas, a pump compresses a liquid. for a given pressure ratio, why does it take more work to compress a gas in a compressor than a liquid in a pump? a)- for a given pressure ratio the average specific volume for a gas is much higher than the average specific volume for a liquid. b)- there is no difference. the only difference is the amount of heat generated (not work) c)- for a given pressure ratio the average volurge for a gas is much higher than the average volume for a liquid. d)-there is no difference