Rework problem 9 in section 4.1 of your text, involving a defective vending machine. Assume that the machine yields the item selected 95 percent of the time, and returns nothing 5 percent of the time. Three individuals attempt to use the machine. Let X be defined as the number of individuals who obtain the item selected.

Question

anonymous · Answer

what is the question?

anonymous · Answer

How many different values are possible for the random variable X? 
PART 2:
Fill in the table below to complete the probability density function. Be certain to list the values of X in ascending order.

anonymous · Answer

$$P(x=k)=\binom{3}{k}(.95)^k(.05)^{3-k}$$  for $$k=0,1,2,3$$

anonymous · Answer

possible values of $x$ are $x=0,x=1,x=2,x=3$

anonymous · Answer

i.e. no one got what they wanted
one person did and two did not
two did and one did not
all three did

anonymous · Answer

can you help with one probability

anonymous · Answer

nvm got it- thanks