Everyday I go to Starbucks.

1) On any day, define the amount I spend at Starbucks as a random variable X

X. A salted caramel mocha is 6$ and a regular coffee is $2.50. Write out the sample space for this experiment. Write out X

X as a function of the outcomes in the sample space. Argue that X

X is a discrete random variable.

2) Suppose further, that I am now interested in the amount of times I buy a regular coffee in the next 10 days. What type of random variable is this? What is the probability I buy exactly 7 coffees over the next 10 days?

#### Top Answer

1) The possible sample space for X be {$6, $2.5}. f ( X ) = { 0 . 5 , X = $ 6 0 .... View the full answer

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#### Other Answers

(1) Sample Space for this experiment = (6, 2.50) X is a... View the full answer

1) Sample space, S = {2.50, 6} Function of X: p(x) = p x (1-p) 1-x , when X ∈ {2.50, 6} = 0,... View the full answer