Shark Attacks In the last 250 years, there have been 6 deaths due to shark attacks around the Hawaiian Islands. In the next year, what is the probability there will be: 11. A shark attack. Thousandths 12. At least one shark attack? Thousandths In the next 100 years, what's the probability there will be: 13. More than two shark attack? Lightbulbs The lifespan of a laptop is normally distributed with a mean of 7.8 years and a standard deviation of 1.2 years. What percent of laptops last: 14. At least 6 years? Hundredths 15. Less than 10 years? Hundredths 16. Between 6 and 12 years? Hundredths 17. No more than 3 years? Hundredths 18. What lifespan represents the top 5%? Tenths