PRC-2 · Chapter 11 · Question 35 of 60
A standard, fair six-sided die is rolled exactly 4 times in sequence. What is the approximate probability of rolling a '6' at least one time during these 4 rolls?
Test yourself: pick an answer
Reveal answer & explanation
Correct answer: C) 0.518
Explanation
The easiest method is to find the probability of NEVER rolling a 6 and subtracting it from 1. P(not 6) = 5/6. For 4 rolls, (5/6)^4 ≈ 0.482. The complement is 1 - 0.482 = 0.518.
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