24
QuizMultiple Choice

Unit Test — Unit test

Question 24 • Probability and Statistics with Applications Honors Sem-2-FL-1210300 (2024-2025)

A child is playing a card game where, if she does not have a red card in her hand, she must draw cards from the deck, and keep the cards she draws, until she draws a red card.

Answer
A
Yes, the geometric distribution is appropriate.
B
No, since each trial is not independent of the other trials.
C
No, because it is not looking for the first occurrence of success.
D
No, since a success and failure on each trial cannot be defined.

Explanation

A geometric distribution requires independent trials with the same probability of success on each trial. Here, each card is kept after it is drawn, so the deck changes and the chance of drawing a red card changes from draw to draw. Therefore, the trials are not independent, and “No, since each trial is not independent of the other trials” is correct.

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