The Uniform Distribution

The number of tickets purchased by an individual for Beckham colleges holiday music festival is uniformly distributed random variable ranging from 5 to 12. What is the standard deviation?

Correct answer:

σ =  2.0207

Step-by-step explanation:

a=5 b=12  μ=2a+b=25+12=217=821=8.5  σ=12(ba)2=12(125)2=2.0207

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