Shooting Star warm up
Number Theory
Level
pending
Starville is known for its shooting stars. On a Friday night, there is a 60% chance that she will see a shooting star at any given hour. Evan goes outside, hoping to see a shooting star. He stays outside for 2 hours. What is the probability that he gets to see a shooting star?
84%
70%
90%
80%
61%
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1 solution
P(shooting stars 🌠in 2 hours)
= 1 – (1 – 0.6)²
= 1 – 0.4²
= 84%