Which of the Following Random Variables Is Geometric

question 7

Multiple Choice

Which of the following random variables is geometric?

• A) the number of phone calls received in a one-hour period
• B) the number of cards I need to deal from a deck of 52 cards that has been thoroughly shuffled so that at least one of the cards is a heart
• C) the number of digits I will read beginning at a randomly selected starting point in a table of random digits until I find a 7
• D) all of the above
• E) none of the above