Dave is required to sell candy bars to raise money for a trip. Dave can not return home until candy bars have been sold. So he goes door to door, selling candy bars. At each house, there is a 0.6 probability of selling one candy bar and a 0.4 probability of selling nothing. Evaluate the probability that he tried 7 houses and sold 5 candies. 

Suppose we are interested in finding the probability of obtaining at least one 5 or 6 in four rolls of a fair die (each face will have same chance to appear). If r.v. X denotes number of rolls that 5 or 6 in the die appears. What distribution does X follow ?

There are two events (sets) . We know probabilities

Which statement is correct about lobar bronchi and lungs?  

One of the functions of the lymphatic system is to transport fat.  

Where do you find elastic cartilage?  LO 3.6

Which portion of the heart’s conducting system generates an impulse for atrial contraction?  

Which heart chamber receives deoxygenated blood from the inferior vena cava?  

N2%

O2 Desat Index (#/hour)