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Movie trailers are designed to entice audiences by showing scenes from upcoming movie attractions. The duration...

Movie trailers are designed to entice audiences by showing scenes from upcoming movie attractions. The duration of a movie trailer is approximately normal, with a mean of 150 seconds and a standard deviation of 30 seconds. What percentage of movie trailers are between 171 second and 189 seconds?

a.1.30%

b.90.32%

c.75.80%

d.14.52%

Math   Statistics-And-Probability   
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Movie trailers are designed to entice audiences by showing scenes from upcoming movie attractions. The duration...
Movie trailers are designed to entice audiences by showing scenes from upcoming movie attractions. The duration of a movie trailer is approximately normal, with a mean of 150 seconds and a standard deviation of 30 seconds. What is the 15th percentile for the time of a movie trailer? a. -1.04 seconds b. 118.8 seconds c. 181.2 seconds d. 154.5 seconds
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